NUU B40 5G 8GB+256GB
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3 votes in Everyday and value smartphones.
About this product
Full listing name
NUU B40 5G Cell Phone Unlocked, T-Mobile,8GB+256GB, Midnight Grey
The NUU B40 5G unlocked smartphone runs Android 15 on a 2.5GHz octa-core processor with 8GB RAM and 256GB storage. A 6.7-inch FHD+ AMOLED display refreshes at 120Hz, paired with a 1.6-inch rear Vista Display for notifications. It features a 64MP rear and 16MP front camera, a 5,000mAh battery, dual SIM support, and compatibility with T-Mobile, Mint, and Metro.
Price & purchase
- $249.99 AmazonView at Amazon
4.2 from 103 retailer reviews
Retailer context only. It contributes zero weight to TallyGo rank.See rankings across comparisons
0 distinct supporters 0 supported dimensions 0 established wins Early community signal
| Comparison | Standing | Votes | Support | Evidence | Score contribution |
|---|---|---|---|---|---|
| Everyday and value smartphones | Unranked | 0 | 0.0% | Early signal · 3 voters | 0.00 |
| Best battery life | Unranked | 0 | 0.0% | Early signal · 0 voters | 0.00 |
| Best compact | Unranked | 0 | 0.0% | Early signal · 0 voters | 0.00 |
| Best overall | Unranked | 0 | 0.0% | Early signal · 0 voters | 0.00 |
| Best value | Unranked | 0 | 0.0% | Early signal · 0 voters | 0.00 |
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Product details
Description, highlights, and specifications from the retailer feed.
Discover the NUU B40 5G Cell Phone Unlocked— featuring a 6.7" FHD+ , a and support for a smarter, more connected mobile experience. NUU B40 5G Cell Phone NUU B30 5G Cell Phone NUU N30 Cell Phone NUU N20 Basic Phone NUU N10 Basic Phone What can I do with the NUU B40 second display? Without flipping your phone, you can check notifications, call previews, control music playback, monitor time, battery level, step count and selfies with the rear 64MP camera. Simple double tap activates it, faster way to stay connected. Is the NUU B40 compatible with my carrier? Does it support Dual SIM? The NUU B40 is a fully unlocked Dual SIM Cell Phone 5G compatible with T-Mobile, Mint Mobile, Metro, Qlink and Tello. Use two lines on one device — ideal for separating work and personal calls, or maximizing coverage on the go. How good is the gaming performance on the NUU B40? The NUU B40 features a 120Hz FHD+ AMOLED display, Octa-Core 2.5GHz processor and 8GB RAM for smooth, lag-free gameplay. Enjoy fluid motion, vivid colors and fast app loading — great for gaming, streaming and watching sports. What is the camera setup on the NUU B40? The NUU B40 has a 64MP rear camera, 2MP macro lens and 16MP front camera, all enhanced by AI optimization for sharp, clear shots in any lighting. Perfect for creators and everyday users of unlocked Android phones. My NUU B40 5G phone isn't charging to full. What should I check? Check if Adaptive Charging (Battery Protection / Custom Charging Mode) is enabled in Settings. This optional feature limits charging to preserve battery health. Simply disable it — or adjust the charge limit — to restore full charging capacity.
- Brand
- NUU
- Operating System
- Android 15
- Ram Memory Installed Size
- 8 GB
- CPU Speed
- 2.5 GHz
- Memory Storage Capacity
- 256 GB
- Screen Size
- 6.7 inches
- Resolution
- 1080 x 2400
- Refresh Rate
- 120
- Model Name
- Series B
- Wireless Carrier
- Unlocked
- Color
- Midnight Grey
- Frame Rate
- 120 fps
- Model Year
- 2025
- Form Factor
- Bar
- Item Weight
- 187 g
- Camera Flash
- LED
- Display Type
- AMOLED
- Manufacturer
- Nuu Mobile
- Model Series
- B40
- Battery Power
- 5000 milliamp_hours
- Sim Card Size
- Nano
- Connector Type
- USB Type C
- Phone Talk Time
- 38 hours
- Camera Description
- Front, Rear
- Compatible Devices
- T-Mobile
- Additional Features
- Dual Display, Dual SIM, Rear display phone
- Battery Description
- Lithium-Polymer
- Cellular Technology
- 5G
- Sim Card Slot Count
- Dual SIM
- Warranty Description
- 1 Year Manufacturer
- Display Pixel Density
- 393 pixels_per_inch
- Water Resistance Level
- Not Water Resistant
- Connectivity Technology
- Bluetooth
- Number Of Front Cameras
- 2
- Video Capture Resolution
- 9216 x 6912
- Specific Uses For Product
- gaming, streaming, photography
- Biometric Security Feature
- Fingerprint Recognition
- Effective Video Resolution
- 64 mp
- Wireless Network Technology
- Wi-Fi
- Gps Geotagging Functionality
- A-GPS
- Front Photo Sensor Resolution
- 16 mp
- Eu Spare Part Availability Duration
- 1 years
- Supported Satellite Navigation System
- GPS
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