Ulefone Armor 21 vs ZTE Blade A31 Plus
Ulefone Armor 21
ZTE Blade A31 Plus
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G networkHSDPA 850, 900, 1700(AWS), 1900, 2100HSDPA 850, 900, 2100
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4G networkLTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 19, 20, 28, 34, 38, 39, 40, 41, 66LTE frequency band 1, 2, 3, 5, 7, 8, 20, 28, 38, 40, 41
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HSDPA speed-21.1 Mbps
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HSUPA speed-5.76 Mbps
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EV-DO speedEV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload-
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LTE speedLTELTE, 151 Mbps download, 51 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2023-052021-10
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Status2023-052021-10
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Design
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BuildPolycarbonate, TPU, metalPlastic
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height176 mm159.2 mm
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Width81.6 mm77.5 mm
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Thickness18.1 mm9.6 mm
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Weight400 g200 g
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WaterproofIP68/IP69K (1.5m and 30 mins)-
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Dust proofIP68/IP69K-
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MIL-STD-810HYes-
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ColorsBlackBlue, Gray
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Display
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Display typeIPS LCDIPS LCD
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Physical size6.58 inches6.0 inches
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Resolution1080 x 2408 pixels480 x 960 pixels
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Pixel density401 ppi179 ppi
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Display colors1677721616777216
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ProtectionScratch resistant-
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Hardware
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CPUOcta-coreOcta-core
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CPUDual-core 2.2 GHz Cortex-A76Quad-core 1.6 GHz Cortex-A55
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CPU(second)Hexa-core 2.0 GHz Cortex-A55quad-core 1.2 GHz Cortex-A55
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ChipsetMediaTek MT8781 Helio G99Unisoc SC9863A
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GPUMali-G57 MC2IMG8322
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Memory RAM8 GB1 GB
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Internal storage256 GB32 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD, microSDHC, microSDXC
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Memory card max2 TB128 GB
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OS
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OSAndroid 13Android 11 Go Edition
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Main camera
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Camera typeDualSingle
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Main camera(wide) , 64 MP, f/1.9 , 0.8 µm5 MP, f/1.8
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(night vision) , 24 MP, f/1.8
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Interpolated resolution-8 MP
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Primary camera resolution9280 x 6180 pixels3264 x 2448 pixels
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Primary camera video-720p@30fps
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Primary camera flashLED flashLED flash
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Camera featuresAutofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro-mode, phase detection autofocusHDR
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Selfie camera
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Selfie camera typeSingleSingle
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Selfie camera(wide) , 16 MP, f/2.2 , 1.0 µm2 MP, f/2.8
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Selfie camera interpolated resolution-5 MP
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Selfie camera resolution4608 x 3456 pixels2560 x 1944 pixels
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Selfie camera featuresFace unlock, HDR, face detection-
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Selfie camera video1080p@30fps480p@30fps
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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EarpieceYesYes
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Multimedia
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RadioStereo FM radio, RDS, recordingFM Radio
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11acWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYesYes
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WLAN WiFi Dual BandYes-
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USBType-C 2.0microUSB 2.0
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USB On-The-GoYes-
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Bluetoothv5.2v4.2
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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InfraredYes-
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NFCYesYes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYesYes
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GALILEOYes-
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BDSYes-
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Features
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SensorsAccelerometer, barometer, compass, fingerprint, gyroscope, proximityAccelerometer
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity9600 mAh3000 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingYes, 33W-
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Tests and performance
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Antutu370000 (v9)101300 (v8)
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Geekbench(single-core)567 (v5.2)149 (v5.2)
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Geekbench(multi-core)1857 (v5.2)817 (v5.2)
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Cost
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Price240 USD100 USD
