#62

BLU

BLU Bold K50

Rating

Model: K0130WW

$199(incl. tax)Amazon price as of 2025-09-03

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Product Overview

The BLU Bold K50 is a 5G unlocked smartphone featuring a 6.7” FHD+ 3D AMOLED display, 256GB of storage, and 8GB of RAM. It boasts a triple 64MP camera system and is powered by a MediaTek Dimensity 6300 processor. The device runs on Android 14 and includes a 3-day battery. It supports GSM carriers like T-Mobile and Metro PCS, but is not compatible with AT&T/Cricket or CDMA networks. Additional features include a 120Hz display, NFC, and face/fingerprint unlocking.

Product Specifications

Display Size

6.7inches

Display Resolution

1080 x 2400pixels

RAM

8GB

Storage Capacity

256GB

Main Camera Resolution

64MP

Front Camera Resolution

-MP

Battery Capacity

-mAh

Operating System

Android 14

Processor

MediaTek Helio

5G Support

Yes

NFC Support

Yes

Water Resistance

Wi-Fi Standard

Size & Weight

Weight

1.08 pounds

Hight

7.28 inches

Width

3.86 inches

Depth

2.05 inches

Features

Wireless Charging Function

Feature Description

A function that allows charging the smartphone simply by placing it on a compatible charging pad, without needing to plug in a cable. Useful for quickly charging at home or in the office, preventing cable clutter. Allows easy charging whenever the battery is low.

About This Product

Wireless charging is not supported on this device. Users will need to rely on traditional wired charging methods, which may be less convenient for some. This is a common omission in budget-friendly smartphones to reduce costs.

Water Resistance Function

Feature Description

A function that protects the smartphone from water damage. Offers peace of mind when using the phone in the rain, around water, or during outdoor activities. Helps prevent malfunction from accidental splashes.

About This Product

This phone does not have any official water resistance rating. Users should exercise caution when using the phone around water or in wet conditions to avoid potential damage. This is a common omission in budget-friendly smartphones to reduce costs.

Expandable Storage Function

Feature Description

A function that allows increasing storage capacity using a microSD card. Useful for storing large amounts of photos, videos, and apps without worrying about running out of space. Provides flexibility for managing data storage needs.

About This Product

The phone does not support expandable storage via microSD card. Users are limited to the internal 256GB of storage, so managing storage efficiently is important, though 256GB should be sufficient for most users.

Dual SIM Function

Feature Description

A function that allows using two SIM cards simultaneously. Convenient for separating personal and work phone numbers or for using different carriers for domestic and international calls. Simplifies managing multiple phone lines.

About This Product

Dual SIM functionality is not mentioned in the product information. Therefore, users are limited to using a single SIM card in this device. This may be a drawback for those who need to manage two phone numbers simultaneously.

Reverse Wireless Charging Function

Feature Description

A function that allows using the smartphone to wirelessly charge other compatible devices, such as wireless earbuds or smartwatches, by placing them on the phone's back. Useful for sharing battery power with other devices when an outlet is not available. Provides emergency charging capabilities.

About This Product

Reverse wireless charging is not supported on this device. Users cannot use the phone to wirelessly charge other compatible devices like earbuds or smartwatches. This feature is typically found on higher-end smartphones.

High Refresh Rate Display Function

Feature Description

A function that displays the screen with a higher refresh rate, resulting in smoother scrolling, animations, and gaming experiences. Reduces eye strain and provides a more responsive feel. Enhances the overall visual experience.

About This Product

The phone features a 120Hz display, resulting in smoother scrolling, animations, and gaming experiences. This reduces eye strain and provides a more responsive feel, enhancing the overall visual experience compared to standard 60Hz displays.

SHOPSTAFF Rating Score

#62

Ranked #62 out of 99 products in Category

3.7

Overall Rating

The BLU Bold K50 is a budget 5G phone with a focus on providing essential features at an affordable price. While it offers a large AMOLED display and ample storage, its camera and processing power are limited compared to higher-end models. It's suitable for users who prioritize affordability and basic smartphone functionality.

Processor Performance

3.5

Rating Criteria Explanation

The processor (CPU) is the brain of the smartphone. A more powerful processor ensures smoother multitasking, faster app loading times, and better performance in demanding applications like gaming and video editing. Consider the processor's core count (e.g., quad-core, octa-core) and clock speed (GHz). Also, look at benchmark scores (e.g., Geekbench, AnTuTu) for a more objective comparison. A faster processor contributes significantly to the overall responsiveness and longevity of the phone, preventing it from feeling sluggish over time.

Rating Comments

The MediaTek Helio processor, with a speed of 2.4 GHz, offers adequate performance for everyday tasks and moderate gaming. However, it may struggle with more demanding applications and multitasking compared to higher-end processors.

RAM (Random Access Memory)

4.0

Rating Criteria Explanation

RAM is crucial for multitasking. More RAM allows you to run more apps simultaneously without experiencing slowdowns. Insufficient RAM can lead to apps closing unexpectedly or the phone becoming unresponsive. For modern smartphones, 4GB of RAM is generally considered the minimum, with 6GB or 8GB being preferable for heavier users or those who plan to keep their phone for several years. Insufficient RAM will noticeably impact daily use.

Rating Comments

With 8GB of RAM, the phone can handle multiple apps running simultaneously without significant slowdowns. This is sufficient for most users, allowing for smooth multitasking and efficient performance in everyday use.

Storage Capacity

4.5

Rating Criteria Explanation

Storage capacity determines how much data (photos, videos, apps, files) you can store on your phone. Consider your usage habits. If you take many photos and videos or download a lot of apps, you'll need more storage. Check if the phone has a microSD card slot for expandable storage. If not, choose a model with sufficient built-in storage from the start. Running out of storage can be a major inconvenience, forcing you to constantly delete files.

Rating Comments

The 256GB of internal storage provides ample space for storing photos, videos, apps, and files. Users will likely not need to worry about running out of storage, making it convenient for media enthusiasts and heavy app users.

Camera Quality

3.0

Rating Criteria Explanation

Evaluate the camera based on your photography needs. Consider factors like megapixel count, aperture (lower f-number means better low-light performance), sensor size, and image stabilization (OIS or EIS). Read reviews and compare sample photos taken with different phones to assess image quality in various lighting conditions. Features like Night Mode, Portrait Mode, and video recording capabilities (e.g., 4K resolution, frame rates) are also important considerations. The camera is often a primary factor for many users.

Rating Comments

The triple 64MP camera system captures decent photos in good lighting conditions. However, image quality may suffer in low-light environments, and the lack of advanced features like OIS may limit its versatility compared to higher-end cameras.

Display Quality

4.0

Rating Criteria Explanation

The display is your primary interface with the phone. Look for a display with good resolution (Full HD or higher for crisp images), brightness (for visibility in sunlight), and color accuracy. Consider the display technology (e.g., AMOLED, LCD). AMOLED displays typically offer better contrast and more vibrant colors, while LCD displays can be more color-accurate. Also, consider the screen size and aspect ratio to ensure it fits comfortably in your hand and is suitable for your intended use (e.g., watching videos, browsing the web).

Rating Comments

The 6.7" FHD+ 3D AMOLED display offers vibrant colors, sharp details, and good contrast. The 120Hz refresh rate enhances the smoothness of animations and scrolling, providing a more immersive viewing experience for videos and games.

Battery Life

4.0

Rating Criteria Explanation

Battery life is critical for all-day usage. Look for phones with larger battery capacities (mAh). However, battery capacity alone isn't the only factor. Processor efficiency and software optimization also play a significant role. Read reviews to get a sense of real-world battery performance. Also, consider charging speed and whether the phone supports fast charging or wireless charging. A phone with poor battery life can be extremely frustrating, especially when you're on the go.

Rating Comments

The phone is advertised to have a 3-day battery, which is great for users who need long-lasting power. Actual battery life will vary depending on usage patterns, but it should easily last through a full day of moderate to heavy use.

Manufacturer Reliability and Warranty

2.5

Rating Criteria Explanation

Choose a reputable manufacturer with a history of producing reliable smartphones. Research the manufacturer's warranty policy and customer support reputation. A good warranty can protect you from defects and malfunctions. Reliable manufacturers are more likely to provide timely software updates and security patches, ensuring your phone remains secure and performs optimally over time. A solid warranty and good customer support are essential for peace of mind.

Rating Comments

BLU is a less established brand compared to industry giants like Samsung or Apple. While they offer a US warranty, long-term reliability and software support may be a concern for some users. Consider this when evaluating the overall value.

Cost Performance

4.0

Rating Criteria Explanation

Ultimately, the best smartphone is one that offers the best value for your money. Consider all the features and specifications mentioned above in relation to the price. Don't necessarily assume that the most expensive phone is always the best choice. Look for a phone that meets your needs and budget without compromising on essential features. Compare prices from different retailers and be aware of any promotions or discounts that may be available. Balancing features with price ensures you get the most for your investment.

Rating Comments

At $199.99, the BLU Bold K50 offers a compelling value proposition with its 5G connectivity, large storage, and vibrant display. It provides a good balance of features and performance for its price point, making it an attractive option for budget-conscious consumers.

Brand & Manufacturer Details

BLU

BLU: Affordable unlocked smartphones with stylish designs and reliable performance. Experience innovation without breaking the bank.

Considerations

Limited compatibility with certain US carriers
No expandable storage
No gorilla glass protection
Camera performance is average

Recommended For

Budget-conscious users
Users needing 5G connectivity on a budget
Users who need a phone with a large display
Users who need a phone with long battery life

Not Recommended For

Users who need high-end camera capabilities
Users who need a rugged phone
Users who need a phone compatible with all US carriers
Gamers who need high-performance graphics

Suitable For

Everyday use for calls, texts, and social media
Streaming videos and browsing the web
Basic mobile gaming
Travel where 5G connectivity is available

Not Suitable For

Professional photography
High-end gaming
Use on AT&T/Cricket or CDMA networks
Use in rugged environments

Frequently Asked Questions (FAQ)

Q.I'm looking for a budget-friendly 5G phone, but I'm hesitant about the brand. How does the Bold K50 compare to other more well-known brands in terms of performance and reliability?

A.The Bold K50 aims to provide a great value, offering 5G connectivity, a smooth 120Hz display, and a capable MediaTek Dimensity 6300 processor at a more accessible price point. Staff confirmation indicates the phone is fast, reliable, and has excellent battery life. While some users find the camera and speaker quality just okay, and the lack of Gorilla Glass a concern, many feel it competes well with higher-end phones, offering excellent performance for the price.

Q.I'm looking for a budget-friendly 5G phone, but I'm hesitant about the brand. How does the Bold K50 compare to other more well-known brands in terms of performance and reliability?

Q.I've had bad experiences with phones that have poor battery life. The product description mentions a '3-day battery.' Is this accurate, and how does it perform with regular use?

A.The '3-day battery' claim can be subjective and depends on usage. Staff confirmation suggests the battery life is generally excellent, with some users reporting that it lasts for 2-3 days on a single charge. However, some staff confirmation mentions that the battery life may not be as strong as other BLU phones when new, but lasts throughout the day. Your actual experience may vary based on your typical usage patterns, such as screen brightness, app usage, and network connectivity.

Q.I've had bad experiences with phones that have poor battery life. The product description mentions a '3-day battery.' Is this accurate, and how does it perform with regular use?

Q.I'm concerned about the phone's durability, especially the screen. I saw one staff confirmation mentioned scratches. Does the screen scratch easily, and should I invest in a screen protector?

A.One staff confirmation noted the absence of Gorilla Glass and experienced scratches on the screen within a month. It's advisable to invest in a screen protector to prevent scratches and protect the screen, as the phone's screen might be more susceptible to damage without it. Several staff confirmation mentioned screen protectors are easy to find.

Q.I'm concerned about the phone's durability, especially the screen. I saw one staff confirmation mentioned scratches. Does the screen scratch easily, and should I invest in a screen protector?

Q.I rely heavily on my phone's camera for photos and videos. How is the camera quality on the Bold K50, especially in low-light conditions, and does it have image stabilization?

A.The Bold K50 features a triple 64MP camera system. Staff confirmation indicates that the camera is decent and functions well. However, some staff confirmation notes the lack of optical image stabilization (OIS) during video capture as a significant flaw. If camera quality is a top priority, you might want to consider these limitations.

Q.I rely heavily on my phone's camera for photos and videos. How is the camera quality on the Bold K50, especially in low-light conditions, and does it have image stabilization?

Q.I saw a staff confirmation mentioning the phone gets warm. Is overheating a common issue with the Bold K50, and could it affect performance or battery life?

A.One staff confirmation mentions that the phone gets a bit warmer than other phones. While this may not be a widespread issue, it's worth considering if you typically use your phone for extended periods or resource-intensive tasks like gaming or video recording. Overheating could potentially affect performance and battery life over time.

Q.I saw a staff confirmation mentioning the phone gets warm. Is overheating a common issue with the Bold K50, and could it affect performance or battery life?

Q.I need a phone that supports NFC for contactless payments and connecting to other devices. Does the Bold K50 have NFC, and how reliable is it?

A.Yes, the Bold K50 includes NFC technology for seamless connectivity with other gadgets. The product overview states that NFC allows you to effortlessly link your phone with your other devices, making daily life more convenient.

Q.I need a phone that supports NFC for contactless payments and connecting to other devices. Does the Bold K50 have NFC, and how reliable is it?

Q.I'm not familiar with the BLU brand. What is their track record for software updates and customer support?

A.Staff confirmation suggests that BLU phones typically receive at least one Android update. The Bold K50 comes with Android 14, which offers increased user control, enhanced security features, and personalization options. For more information on their customer support, it is best to consult the manufacturer's website.

Q.I'm not familiar with the BLU brand. What is their track record for software updates and customer support?

Q.I store a lot of files on my phone. The description says it has 256GB of storage, but can I expand the storage with a microSD card?

A.The Bold K50 comes with 256GB of internal storage. However, one staff confirmation mentions a drawback: you cannot use an SD card for storage expansion. If expandable storage is a must-have feature for you, this might be a deal-breaker.

Q.I store a lot of files on my phone. The description says it has 256GB of storage, but can I expand the storage with a microSD card?

Q.I use AT&T. Will this phone work with my service?

A.The product overview specifies that the Bold K50 is GSM unlocked and compatible with T-Mobile, Metro PCS, and other GSM carriers. However, it is not compatible with AT&T/Cricket or CDMA networks like Verizon and Sprint. Please consult your service provider for network availability.

Q.I use AT&T. Will this phone work with my service?

SHOPSTAFF Rating Ranking

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SAMSUNG

Galaxy S24 Ultra SM-S928UZKFXAA

$1,419(incl. tax)Amazon price as of 2025-09-04

The Samsung Galaxy S24 Ultra features AI capabilities, a 200MP camera, and a Snapdragon 8 Gen 3 processor.

Display Size	6.8 inches	Display Resolution	3120 x 1440 pixels
RAM	12 GB	Storage Capacity	512 GB
Main Camera Resolution	200 MP	Front Camera Resolution	12 MP
Battery Capacity	- mAh	Operating System	Android 14, One UI 6.1
Processor	Snapdragon 8 Gen 3	5G Support	-
NFC Support	-	Water Resistance	-
Wi-Fi Standard	-

Wireless Charging FunctionWater Resistance FunctionExpandable Storage FunctionDual SIM FunctionReverse Wireless Charging FunctionHigh Refresh Rate Display Function

5.0Overall Rating

5.0Processor Performance

5.0RAM (Random Access Memory)

5.0Storage Capacity

5.0Camera Quality

5.0Display Quality

5.0Battery Life

5.0Manufacturer Reliability and Warranty

5.0Cost Performance

View Details Buy on Amazon Report Content Error

View Details Buy on Amazon Report Content Error

SAMSUNG

Galaxy S25 Ultra 5G SM-S938B

$1,090(incl. tax)Amazon price as of 2025-09-03

The SAMSUNG Galaxy S25 Ultra 5G is a high-end smartphone with advanced features and powerful performance.

Display Size	6.9 inches	Display Resolution	3120 x 1440 pixels
RAM	12 GB	Storage Capacity	512 GB
Main Camera Resolution	200.0 MP	Front Camera Resolution	12.0 MP
Battery Capacity	5000 mAh	Operating System	Android 15
Processor	Qualcomm Snapdragon 8 Elite	5G Support	Yes
NFC Support	-	Water Resistance	-
Wi-Fi Standard	-

Wireless Charging FunctionWater Resistance FunctionExpandable Storage FunctionDual SIM FunctionReverse Wireless Charging FunctionHigh Refresh Rate Display Function

5.0Overall Rating

5.0Processor Performance

5.0RAM (Random Access Memory)

5.0Storage Capacity

5.0Camera Quality

5.0Display Quality

5.0Battery Life

5.0Manufacturer Reliability and Warranty

5.0Cost Performance

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View Details Buy on Amazon Report Content Error

Samsung

Galaxy S25 Ultra SM-S938UZKEXAA

$1,169(incl. tax)Amazon price as of 2025-09-03

The Samsung Galaxy S25 Ultra features advanced AI, a Snapdragon 8 Elite processor, and a built-in S Pen.

Display Size	6.9 inches	Display Resolution	2560 x 1440 pixels
RAM	12 GB	Storage Capacity	512 GB
Main Camera Resolution	- MP	Front Camera Resolution	- MP
Battery Capacity	5000 mAh	Operating System	Android 15, One UI 7
Processor	Snapdragon 8 Elite	5G Support	-
NFC Support	-	Water Resistance	-
Wi-Fi Standard	-

Wireless Charging FunctionWater Resistance FunctionExpandable Storage FunctionDual SIM FunctionReverse Wireless Charging FunctionHigh Refresh Rate Display Function

4.9Overall Rating

5.0Processor Performance

5.0RAM (Random Access Memory)

5.0Storage Capacity

5.0Camera Quality

5.0Display Quality

5.0Battery Life

5.0Manufacturer Reliability and Warranty

4.5Cost Performance

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View Details Buy on Amazon Report Content Error

SAMSUNG

Galaxy S25 Ultra SM-S938B/DS

$1,083(incl. tax)Amazon price as of 2025-09-04

The SAMSUNG Galaxy S25 Ultra is a high-end AI smartphone with a large display and advanced features.

Display Size	6.9 inches	Display Resolution	3120 x 1440 pixels
RAM	12 GB	Storage Capacity	512 GB
Main Camera Resolution	- MP	Front Camera Resolution	- MP
Battery Capacity	- mAh	Operating System	Android 14
Processor	Others	5G Support	-
NFC Support	-	Water Resistance	-
Wi-Fi Standard	-

Wireless Charging FunctionWater Resistance FunctionExpandable Storage FunctionDual SIM FunctionReverse Wireless Charging FunctionHigh Refresh Rate Display Function

4.9Overall Rating

5.0Processor Performance

5.0RAM (Random Access Memory)

5.0Storage Capacity

5.0Camera Quality

5.0Display Quality

4.5Battery Life

5.0Manufacturer Reliability and Warranty

4.5Cost Performance

View Details Buy on Amazon Report Content Error

View Details Buy on Amazon Report Content Error

SAMSUNG

Galaxy S24 Ultra SM-S928B

$825(incl. tax)Amazon price as of 2025-09-03

The SAMSUNG Galaxy S24 Ultra features AI, a 200MP camera, long battery life, and the S Pen for enhanced productivity.

Display Size	6.8 inches	Display Resolution	2560 x 1440 pixels
RAM	12 GB	Storage Capacity	256 GB
Main Camera Resolution	200 MP	Front Camera Resolution	- MP
Battery Capacity	- mAh	Operating System	Android
Processor	1.2GHz Cortex A13 Processor	5G Support	-
NFC Support	-	Water Resistance	IP68
Wi-Fi Standard	-

Wireless Charging FunctionWater Resistance FunctionExpandable Storage FunctionDual SIM FunctionReverse Wireless Charging FunctionHigh Refresh Rate Display Function

4.8Overall Rating

4.8Processor Performance

5.0RAM (Random Access Memory)

5.0Storage Capacity

5.0Camera Quality

5.0Display Quality

4.5Battery Life

5.0Manufacturer Reliability and Warranty

4.5Cost Performance

View Details Buy on Amazon Report Content Error

See more [2025 Edition] 99 Best Smartphones! A Selection Guide comparisons

BLU Bold K50

Product Overview

Product Specifications

Size & Weight

Features

SHOPSTAFF Rating Score

Brand & Manufacturer Details

Considerations

Recommended For

Not Recommended For

Suitable For

Not Suitable For