10+ Best Unlocked Phones Under 400 2020
We’ve spent hundreds of hours researching and comparing the best Unlocked Phones Under 400 of all specifications and features to find the best one for any need (or budget). Here are the results.
10+ Best Unlocked Phones Under 400 2020 – Reviews and Buyer’s Guide
- International Model - No Warranty in US. Compatible with Most GSM Carriers like T-Mobile, AT&T, MetroPCS, etc. Will NOT work with CDMA Carriers Such as Verizon, Sprint, Boost
- RAM 3GB , ROM 32GB Internal Memory ; MicroSD (Up to 512GB), Android 9.0 (Pie), Qualcomm SDM450 Snapdragon 450 (14 nm), Octa-core 1.8 GHz Cortex-A53, Adreno 506
- Main Rear Camera: 13.0 MP + 8.0 MP + 5.0 MP , F1.8 , F2.2 , F2.2 ; Front Camera: 8.0 MP , F2.0, Non-removable Li-Po 4000 mAh battery
- 3G HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100, 4G LTE band 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800), 28(700), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
- 6.5 inches, 103.7 cm2 (~81.9% screen-to-body ratio) 720 x 1560 pixels (HD+), 19.5:9 ratio (~264 ppi density) IPS LCD capacitive touchscreen, 16M colors
- Unlocked Dual SIM smartphone, Android 8.1 Oreo (Go Edition)
- Vivid 4.0” Touchscreen Display
- 5MP Main Camera with flash + 2MP Selfie Camera
- 16GB Internal memory 512MB RAM Micro SD up to 64GB, 1.3GHz Quad core processor with Mali-400 GPU
- GSM Quad band, 3G (850/1700/1900): US compatibility Nationwide on all GSM Networks including AT&T, T-Mobile, Cricket, Metro PCS, Straight Talk, and others. Not compatible with CDMA networks like Verizon, Sprint and Boost mobile.
- 5.5”Hd+ 18:9 Curved Glass Display 720x1440 Resolution.
- 13MP Main Camera with LED Flash, 8MP Selfie camera with LED Flash.
- 32GB Internal memory 2GB RAM Micro SD up to 64GB; Octa-Core 1.6GHz processor with ARM Cortex-A55 chipset.
- 3,000mAh Battery and Android 9 Pie.
- 4G LTE (2/4/5/12/17) 3G: (850/1700/1900): US compatibility Nationwide on all GSM Networks including AT&T, T-Mobile, Cricket, Metro PCS, and others. Not compatible with CDMA Networks like Verizon, Sprint and Boost Mobile.
- Display: 6.5 inches Super AMOLED capacitive touchscreen w/ Corning Gorilla Glass 3 - Resolution: 1080 x 2400 pixels
- Main Camera (Quad): 48 MP + 12 MP + 5 MP + 5 MP w/ LED flash, panorama, HDR - Selfie Camera: 32 MP w/ HDR
- Platform: OS Android - Chipset: Exynos 9611 - Processor: Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53) - Graphics: Mali-G72 MP3
- Sensors: Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
- Wi-Fi: 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot - Bluetooth: 5.0, A2DP, LE - GPS: Yes, with A-GPS, GLONASS, GALILEO, BDS
- Unlocked for the freedom to choose your carrier. Compatible with AT&T, Sprint, T-Mobile, and Verizon networks. Sim card not included. Customers may need to contact Sprint for activation on Sprint’s network.
- 48 MP1 triple camera system. Capture outstanding shots in any situation, from sharp and bright low-light photos to ultra-wide angle action videos.
- Built-in stylus. Edit photos with pinpoint precision, jot notes, sketch freely, and experience finer control with everyday tasks.
- Up to two days battery life2. Go longer on a single charge with a 4000 mAh battery.
- Dual Stereo Speakers tuned by Dolby. Enjoy crystal-clear audio that’s 4x more powerful2 with dual stereo speakers tuned by Dolby.
- Charge Up. Power Through: Spend more time scrolling, texting and sharing, and less time looking for an outlet to charge your mobile phone; Its long-lasting battery has the power to keep up with you
- A Lens for Your Favorite Angle: Capture shareable cell phone portraits, wide shots and videos with the Samsung Galaxy A21’s versatile, 16MP triple-lens camera
- Big Screen to Get More Done: Keep in touch with friends, family and the news with plenty of room on a crystal-clear, 6.5" edge-to-edge display screen
- Store More: Keep all your photos and apps on your Android smart phone without worrying about storage; Get up to 512GB of storage with a MicroSD card (sold separately)
- Wireless voice, data and messaging services compatible with most major U. S. GSM and CDMA networks; Support for certain features and services such as VoWiFi and hot spot, vary by wireless service provider
- 【AI Quad Camera Fit For All Scenes】Including a 16MP main camera + 16MP ultra-wide angle camera + 5MP Macro Camera + 5MP F/1.8 large aperture camera and with built-in super night mode, you can take A7 Pro to record your life day and night, explore the tiny world and grand views, take nice photos and beautiful selfies.
- 【Octa-Core 4GB RAM Processor + Large storage room】UMIDIGI A7 Pro unlocked phone upgraded its Octa-Core processor, you can enjoy smooth operating experience and have more fun in playing mobile games and watching videos. We provide more storage rooms for your apps and photos, 64GB and 128 GB are optional.
- 【4150mAh High-capacity Battery】Powered by a 4150mAh big battery, you can easily go through 2 days of daily use. Charging port is replaced with new type-C plug, you could have more choice in adapters.
- 【Latest Stock Android 10】To keep the system clean, we use original Android 10 system in UMIDIGI A7Pro, you will not receive advertising apps in the phone, and you can manage your apps in your own way.
- 【Global Bands & Dual 4G VoLTE】UMIDIGI A7 Pro android phone supports 33 global bands. Regardless of your place of residence or your destination for a journey, you can connect to the local mobile networks with your smart phone anywhere in the world. Dual SIM + Dedicated Micro-SD Slot(support up to 256GB extra memory), giving you more room for everything.
- SM-A107M/DS, Unlocked, Android 9.0 (Pie), Samsung One UI; 32GB storage expandable with SD card up to 512GB + 2 GB RAM
- 13MP+2MP Dual Rear Camera (F1.8), 8MP Front-Facing Camera (F2.0)
- 6.2 inch, IPS LCD capacitive touchscreen, 16M colors
- Octa-core 2.0 GHz Cortex-A53; 4000 mAh battery, Rear Fingerprint sensor + Front Face Recognition, accelerometer, proximity
- GPRS/E: 850/900/1800/1900, 3G: 850/900/AWS/1900, LTE: B1/B2/B3/B4/B5/B7/B8/B12/B17/B20/B38/B40/B41. Does NOT have NFC
- 6.1” HD+ 19:9 Infinity Curved Glass Display
- Dual 13MP+ Depth Sensor Main Camera with LED Flash + 13 MP Selfie Camera
- 64GB Internal Memory 3GB RAM Micro SD up to 64GB; 1.6GHz Octa-Core Processor| ARM Corterx-A55 with IMG8322 GPU
- 4,000mAH Battery with 10W Quick Charge, Android 9 Pie and Fingerprint Senor
- 4G LTE (1/2/3/4/5/7/12/17/28) 3G: (850/900/1700/1900/2100): US compatibility Nationwide on all GSM Networks including AT&T, T-Mobile, Cricket, Metro PCS, and others. (Not compatible with CDMA Networks like Verizon, Sprint and Boost Mobile)
- Fully Unlocked: Fully unlocked and compatible with any carrier of choice (e.g. AT&T, T-Mobile, Sprint, Verizon, US-Cellular, Cricket, Metro, etc.), both domestically and internationally.
- The device does not come with headphones or a SIM card. It does include a charger and charging cable that may be generic.
- Inspected and guaranteed to have minimal cosmetic damage, which is not noticeable when the device is held at arm's length.
- Successfully passed a full diagnostic test which ensures like-new functionality and removal of any prior-user personal information.
- Tested for battery health and guaranteed to have a minimum battery capacity of 80%.
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