Ulefone Armor 21 vs ZTE Blade A31
Ulefone Armor 21
ZTE Blade A31
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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
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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, 301 Mbps download, 150 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2023-052021-07
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Status2023-052021-07
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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 mm140 mm
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Width81.6 mm71 mm
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Thickness18.1 mm8.9 mm
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Weight400 g166 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 inches5.45 inches
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Resolution1080 x 2408 pixels720 x 1440 pixels
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Pixel density401 ppi295 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 GB2 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 µm8 MP
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(night vision) , 24 MP, f/1.8
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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 pixels1920 x 1080 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
