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NUU

NUU B40 5G, Cell Phone, Unlocked, Dual SIM, Dual AMOLED Display, 120Hz, 64 MP Camera, 8GB+256GB, Android 15, US Version, US 1 Yr Warranty, Midnight Grey

  • Based on 7 reviews
Condition: New
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$199.99 Why this price?
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Availability: In Stock.
Fulfilled by Amazon
Arrives Saturday, May 2
Order within 16 hours and 57 minutes
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Features

  • VISTA DISPLAY DUAL DISPLAY FOR INSTANT ACCESS: Stay connected faster with this dualdisplay cell phone, featuring a 1.6" rear Vista Display for quick updates and a 6.7" FHD+ AMOLED main screen that delivers vibrant visuals, smooth performance and an immersive experience for gaming, streaming and everyday useoptimized for dualdisplay convenience and productivity.
  • DUAL SIM, DOUBLE THE FREEDOM: Stay connected your way with this unlock phone, offering true Dual SIM support so you can separate work and personal lines, enjoy better coverage and switch networks smoothly wherever you go.
  • SMOOTH GAMING PERFORMANCE: Level up your experience with NUU B40 gaming phone. Enjoy ultra-smooth 120Hz gameplay on a 6.7" FHD+ AMOLED display that brings vibrant colors and fluid motion to life. This NUU phone delivers for gaming, streaming and watching sports.
  • AI-ENHANCED PHOTOGRAPHY: Capture stunning detail with a 64MP rear camera, 2MP macro camera and 16MP front camera, powered by AI optimization for crystal-clear shots in any lighting. Perfect for creators and everyday users of unlocked android phones.
  • FAST 5G SMARTPHONE PERFORMANCE: Dual SIM 5G cell phone. Powered by the Octa-Core 2.5GHz processor, 8GB RAM, 256GB storage and a 5000mAh battery. Support for users on T-Mobile, Mint, Metro, Qlink and Tello.

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 Hz


Model Name: Series B


Wireless Carrier: Unlocked


Operating System: Android 15


RAM Memory Installed: 8 GB


Processor Speed: 2.5 GHz


Memory Storage Capacity: 256 GB


Color: Midnight Grey


SIM Card Slot Count: Dual SIM


Connector Type: USB Type C


Form Factor: Bar


Biometric Security Feature: Fingerprint Recognition


Sim Card Size: Nano


Water Resistance Level: Not Water Resistant


Headphones Jack: USB Type-C


Compatible Devices: T-Mobile


EU Spare Part Availability Duration: 1 Years


Additional Features: Dual Display, Dual SIM, Rear display phone


Flash Memory Supported Size Maximum: 256 GB


Front Photo Sensor Resolution: 16 MP


Rear Facing Camera Photo Sensor Resolution: 64 MP


Camera Description: Front, Rear


Camera Flash: LED


Number of Rear Facing Cameras: 2


Number of Front Cameras: 2


Item Weight: 187 Grams


Phone Talk Time: 38 Hours


GPS Geotagging Functionality: A-GPS


Supported Satellite Navigation System: GPS


Screen Size: 6.7 Inches


Resolution: 1080 x 2400


Refresh Rate: 120 Hz


Display Type: AMOLED


Display Resolution Maximum: 1080x2400


Wireless Provider: Unlocked


Cellular Technology: 5G


Connectivity Technology: Bluetooth


Wireless Network Technology: Wi-Fi


Brand: NUU


Model Year: 2025


Built-In Media: Phone Case, Power Adapter, USB Cable


Manufacturer: Nuu Mobile


Model Series: B40


Specific Uses For Product: gaming, streaming, photography


Warranty Description: 1 Year Manufacturer


Battery Capacity: 5000 Milliamp Hours


Battery Description: Lithium-Polymer


Battery Power: 5000 Milliamp Hours


Effective Video Resolution: 64 MP


Video Capture Resolution: 9216 x 6912


Frame Rate: 120 fps


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, May 2

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Bought it for 1 reason, kept it for many more.
Uuhhhhh, I thought the second screen on the back was a pretty cool feature, but once I got the phone, it is pretty useless. It has 4 pages (?) I guess, music, camera, a compass, and the main screen, which fur some reason is called the dial. And there's , I think, 10 options fur his how it looks. I dunno, I bought the phone cuz of the second screen, after I checked it out, I haven't used it again. And it seems to always be on. There aren't many settings for it. , maybe it'll be better in later versions? Who knows. Even so, the phone itself is a good phone. Lots of ram, and an internal 256 gb is pretty nice. Would be better if I could put in a memory card but it's not expandable. The camera has hella modes, which is cool. The phone is thin and light. Also, it's unlocked, and it's 100% compatible with my cell service. My last 2 phones weren't and some of the features didn't work. So it's a good phone, good price, battery is not as big as other phones, but seems to last long, charges hella quick. You won't be disappointed if you buy it. ... show more
Reviewed in the United States on December 22, 2025 by Paul parres
    • Awesome phone.
It's absolutely worth the price. I already had the NUU A25 and I was thinking of switching to Samsung, but this phone is better. It's also very light, it comes with a charger too.
Reviewed in the United States on February 18, 2026 by F Viteskic
    • Excellent for the price.
Excellent phone. bright responsive screen. The only thing for me would be to have additional memory. the internal one is well enough but really could greatly improve if I could add more. this is the only reason I did not give it 5 stars
Reviewed in the United States on January 31, 2026 by Symbyot
    • works fine better than the Motorola I was using.
Great phone
Reviewed in the United States on March 6, 2026 by Leslie Sharp
    • Not bad for the price. Good phone.
Highly recommended for low budget, this phone is just about right. Slim phone, all day battery, games no lag, 120hz display, amo led display, dual sim, 5g, camera is okay. A back screen that makes it unique. They need to work on phone storage. Everything else are good.¹
Reviewed in the United States on January 1, 2026 by Orlando Nava
    • Great buy
This is a great phone. Up to date. Very fast and updated and ultra reliable . Highly recommend. Used with mint mobile
Reviewed in the United States on December 31, 2025 by Porsche Neale
    • Not expensive
Very nice phone.
Reviewed in the United States on January 1, 2026 by Accelred
    • Expect to be impressed
It work's great with T-Mobile. Clear sound and no lagging. Excellent phone at a fraction of the cost of other phones with the same specs.
Reviewed in the United States on February 15, 2026 by jc lundy

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