Pre-order the Galaxy S25 Edge now—score a 512GB free storage upgrade! Home Zen Mobile Phones You are here Updated : Mar 27, 2015, 4:07 AM Zen Mobile U1 Specs OS Android 2.3 Display 3.5-inch Camera 3.2 MP Main Battery 1200 mAh Description The Zen Mobile U1 is a dual-SIM phone operating with Android 2.3. The device is equipped with 3.5" display, 1 GHz CPU, 3.2 MP camera, FM radio. User Score Be the first to review this phone Add Review I want it 0 users I have it 0 users I had it 0 users Popular Comparisons The Zen Mobile U1 is most commonly compared with these phones: Zen Mobile U1 vs Samsung Galaxy S23+ Zen Mobile U1 vs Samsung Galaxy S22+ Zen Mobile U1 vs Samsung Galaxy S25+ Zen Mobile U1 vs Samsung Galaxy S23 FE Zen Mobile U1 vs Samsung Galaxy S25 Ultra Specs Display Size 3.5-inch Features Ambient light sensor, Proximity sensor Hardware Processor Single core, 1000 MHz GPU Yes Storage expansion microSDHC up to 16 GB OS Android (2.3) ROM 512 MB Device type Smartphone Battery Capacity 1200 mAh Type Li - Ion, User replaceable Camera Rear Single camera Main camera 3.2 MP Flash LED Video recording Yes Design Keys Left: Volume control Colors Black, White Cellular Dual SIM Yes Multimedia Headphones 3.5mm jack Speakers Earpiece, Loudspeaker Features Album art cover, Background playback Radio FM Connectivity & Features Bluetooth Yes Wi-Fi 802.11 b,g USB microUSB, USB 2.0, Features: Mass storage device, Charging Location GPS, A-GPS Sensors Accelerometer, Compass Other Tethering, Computer sync, OTA sync Phone Features Notifications Haptic feedback, Music ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, Speakerphone Other features Voice dialing, Voice commands, Voice recording Despite our efforts to provide full and correct Zen Mobile U1 specifications, there is always a possibility of admitting a mistake. If you see any wrong or incomplete data, please LET US KNOW. If you are interested in using our specs commercially, check out our Phone specs database licensing page. Latest News Your Android phone could soon be getting a feature to rival one of the iPhone’s smartest tricks Amazon launches a rare Garmin Forerunner 265 promo you just can't pass up Samsung could be making a big change to make their next foldables even thinner, but at what cost? This phone has the best battery life of 2025 and it's not even close Pixel 6a explodes and catches on fire. The one clue to look for that can give you an early warning Nothing Phone (3) is NOT the mid-range phone we’ve been waiting for Popular stories T-Mobile is desperately trying to stop its users from leaving with better-than-ever retention offers T-Mobile has already given phone buyers a reason not to pick any other carrier this year Ex-Verizon customer has a cautionary tale for anyone planning to leave Verizon might ditch 5G infrastructure buildout for something new soon T-Mobile users get new Starlink toggle as public rollout approaches Samsung and Apple are both ditching Qualcomm and for good reason