B40 5G Android Smartphone
Original price was: $299.99.$249.99Current price is: $249.99.
- All-New Dual Display Technology : 6.7” FHD+ AMOLED & 1.6” secondary AMOLED displays
- 120hz refresh rate
- MediaTek Dimensity 7025
- 2.5GHz Octa Core processor
- 8GB of RAM and 256GB of storage
- 5000mAh battery with 33W Fast Charge
- Rear Camera: 64MP + 2MP, Front Camera: 16MP
- Android 15
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Compatible Carriers
- Gen Mobile
- Hello Mobile
- Metro by T-Mobile
- Mint Mobile
- SpeedTalk Mobile
- Straight Talk
- T-Mobile
- Tello Mobile
- TruConnect
- see all carriers
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What is the NUU B40 5G?
The B40 5G is NUU's most distinctive smartphone yet, combining a 6.7” AMOLED main display with a 1.6” rear Vista Display for notifications, personalized dial styles, and rear-camera selfie previews without flipping the phone over. Powered by the MediaTek Dimensity 7025 processor, it includes 8GB RAM, 256GB storage, a 64MP main camera, and a 5,000mAh battery with 33W fast charging. Running Android 15 out of the box, the unlocked B40 5G works with major US carriers without requiring a contract. Starting at $249.99, it brings a dual-display smartphone experience to a more accessible price point.
The Phone
That Sees in All Directions
Tap to unlock — dual sides that shine with brilliance.
A slim, streamlined body elevates every intelligent experience.
Immerse in a boundless view and enjoy brilliance from every direction.
Refine to the touch
The back cover, crafted with PC and PMMA for impact resistance and silky touch, features a gray matte finish and an understated metal logo — plus a 1.6" rear display seamlessly integrated into the camera housing, for a design as exquisitely refined as stunningly beautiful.
Vista Display
Introducing the Vista Display —
Our First Dual AMOLED Interface - Reimaging Awareness, Style and Next-Level Selfie Control. It features a five-layer structure design: scratch-resistant glass, textured screen printing layer, vibrant OLED panel, and more — crafting an exceptional viewing and interactive experience.
Crafted to Perfection, Tailored for You
Future-ready design, smart and sleek — the 1.6" secondary screen lets you access selfies, notifications, music, call controls and more instantly, no phone-flipping needed. Elevating both daily use and your standout moments, Vista is your always-on "window to what matters", keeping key moments within reach.
Vista Display: Exquisite Dials
Express Yourself with 10 Exquisite Rear Display Dials
From business-style minimalism, to sports-style dynamic step counters, to art-style illustrations, the Vista Display adapts to work, play, and leisure scenarios — turning it into your personal style highlight. With low-power technology, the always-on dials use virtually no extra energy, balancing convenience and battery life.
Vista Display:Versatile Functions
Skip Waking the Main Screen —
The Vista Display handles various tasks with ease
Real-time time/date display, instant previews for calls, messages, charging status, music control, and Google App notifications; plus flip-to-auto-light and always-on display — cutting the hassle of frequent main screen unlocks.
NUU Vista Interface Touch Interaction
Take control of your world with effortless gestures at your fingertips. The B40's Vista Display responds to single taps, double taps, swipes, long presses, and more—adapting seamlessly to every scenario.
Double
Tap
Turn the screen on/off
Swipe
Left/Right
Switch Screens
Swipe
Up/Down
Show Message Alerts
Tap
Shutter Button
Take a Photo
Swipe Down to Exit Camera Mode
Tap
Music Controls
Play/Pause, Next Track, Previous Track
Swipe
Phone
Swipe Down to Decline
Swipe Up to Answer
Tap
Messages
Tap to Dismiss Messages Alerts
Subtle mystery
natural radiance
Level Up Your Selfie Game
Explore Selfie Styles
64MP rear camera pushes the boundaries of possibility in every shot. Powered by the Rear Lens Algorithm, it elevates solo and group photo quality for stunning results.
Dual Shooting -
Redefining the Rules of Photography
Front Camera (16MP)
Capture Your Best Angle with Precision and Clarity.
Rear Cameras (64MP + 2MP Macro)
The dual-lens algorithm pushes boundaries for stunning shots capturing everything from wide frames to close-up details. Now, with rear-camera selfies, unleash endless possibilities.
Pro Mode
Pro mode offers you adjustable parameters adjustment, easy to frame the views even in different scenes, delivering a professionals-like shooting experience. Added Raw save feature, you can select the Raw format to storage, to produce the original images.
Enhanced
Facial Features
Emoji Mode
Map facial features and bring them to life with colorful emoji expressions.
Best Expressions
Choose everyone's best expression by algorithm to incorporate into the group photo.
Dual-View Video Double the Fun
The front and rear cameras record at the same time, conveniently recording different scenes simultaneously.
B40 5G
B40 5G
6.7” AMOLED FHD+ (120Hz Refresh Rate)
1.6" (Vista Display)
256GB Storage
8GB RAM
Front Camera 16MP Rear Camera 64MP + 2MP(Macro)
Up to 2.5GHz Octa-Core
5G LTE
Dual SIM
5,000mAh
Android 15
What's inside your NUU B40 5G
Operating System Android™ 15
Camera
Rear Camera: 64MP + 2MP(Macro)
Front Camera: 16MP
Processor Dimensity 7025 2.5GHz Octa-Core
Display
6.7" AMOLED FHD+ 1080 x 2400
With 120Hz Refresh Rate
Vista Display 1.6" AMOLED FHD+ 228 x 460
Battery 5000mAh with 33W Fast Charge
Memory
RAM: 8GB
Storage: 256GB
Dimensions 162.4 x 73.9 x 8.4mm
Networks
5G N 2/5/25/41/48/66/71/77
4G B1/2/3/4/5/7/12/13/17/25/26/28/48/66/71
3G B1/2/4/5/8
2G B2/4/5/8
Connectivity
Wi-Fi 802.11 ac/a/b/g/n (2.4GHz / 5GHz)
Bluetooth 5.2
GPS with A-GPS Support
Type-C with USB V2.0
Dual SIM Dual Standby
Sensor Type
In-display Fingerprint ID
Accelerometer
Ambient Light
Gyroscope
Magnetometer
Proximity Light
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Who is the NUU B40 5G for?
The B40 5G is a strong choice for users who want a premium-looking smartphone experience without flagship-level pricing. The Vista Display adds practical convenience for multitasking, quick notification checks, and rear-camera selfie previews, making it especially useful for content creators and social media users. With Android 15, 5G connectivity, and a capable MediaTek Dimensity 7025 processor, the B40 5G is also well positioned as a reliable everyday device for years to come.
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