Samsung Galaxy Z Fold4 vs Ulefone Armor 21
Samsung Galaxy Z Fold4
Ulefone Armor 21
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Network
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2G networkGSM 850, 900, 1800, 1900; CDMA 800, 1900GSM 850, 900, 1800, 1900
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3G networkHSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DOHSDPA 850, 900, 1700(AWS), 1900, 2100
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4G networkLTE frequency band 1, 3, 4, 5, 8, 12, 13, 17, 20, 25, 38, 39, 40, 41LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 19, 20, 28, 34, 38, 39, 40, 41, 66
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5G network5G band 1, 3, 5, 20, 41, 77, 78 SA/NSA/Sub6/mmWave-
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HSDPA speed42.2 Mbps-
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HSUPA speed5.76 Mbps-
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EV-DO speed-EV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload
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LTE speedLTE-A (7CA), Cat20, 2000 Mbps download, 200 Mbps uploadLTE
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2022-082023-05
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Status2022-082023-05
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Design
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BuildGlass front (Gorilla Glass Victus+) (folded), plastic front (unfolded), glass back (Gorilla Glass Victus+), aluminum framePolycarbonate, TPU, metal
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SIMUp to two Nano SIM and one eSIMDual SIM (Nano-SIM, dual stand-by)
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Height155.1 mm176 mm
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Width67.1 mm81.6 mm
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Thickness14.2-15.8 mm18.1 mm
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Height unfolded155.1 mm-
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Width unfolded130.1 mm-
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Thickness unfolded6.3 mm-
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Weight263 g400 g
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StylusYes-
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PaymentSamsung Pay (Visa, MasterCard certified)-
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WaterproofIPX8, 1.5m and 30 minutesIP68/IP69K (1.5m and 30 mins)
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Dust proof-IP68/IP69K
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MIL-STD-810H-Yes
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ColorsBlack, Beige, Burgundy, GraygreenBlack
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Display
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Display typeFoldable Dynamic AMOLED 2XIPS LCD
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Physical size7.6 inches6.58 inches
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Resolution1812 x 2176 pixels1080 x 2408 pixels
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Pixel density373 ppi401 ppi
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Display colors1677721616777216
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Protection-Scratch resistant
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Display features120Hz, HDR10+, 1200 nits (peak)-
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Cover displayDynamic AMOLED 2X-
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Cover display physical size6.2 inches-
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Cover display resolution904 x 2316 pixels-
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Cover display features120Hz, 120Hz, Corning Gorilla Glass Victus+-
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Hardware
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CPUOcta-coreOcta-core
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CPUSingle-core 3.19 GHz Cortex-X2Dual-core 2.2 GHz Cortex-A76
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CPU(second)Triple-core 2.75 GHz Cortex-A710Hexa-core 2.0 GHz Cortex-A55
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CPU(third)Quad-core 1.8 GHz Cortex-A510
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ChipsetQualcomm SM8475 Snapdragon 8+ Gen 1MediaTek MT8781 Helio G99
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GPUAdreno 730Mali-G57 MC2
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Memory RAM12 GB8 GB
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Internal storage256, 512, 1024 GB256 GB
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Memory cardNomicroSD, microSDHC, microSDXC
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Memory card max-2 TB
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StorageUFS 3.1-
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OS
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OSAndroid 12L, One UI 4.1.1Android 13
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Main camera
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Camera typeTripleDual
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Main camera(wide) , 50 MP, f/1.8 , 24 mm, 1.0 µm(wide) , 64 MP, f/1.9 , 0.8 µm
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(telephoto) , 10 MP, f/2.4 , 67 mm, 1.0 µm, 3x optical zoom(night vision) , 24 MP, f/1.8
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123˚ , (ultrawide) , 12 MP, f/2.2 , 12 mm, 1.12 µm
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Primary camera resolution8190 x 6144 pixels9280 x 6180 pixels
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Primary camera video4K@60fps, 1080p@60/240fps (gyro-EIS), 720p@960fps (gyro-EIS), HDR10+-
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Primary camera flashLED flashLED flash
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Camera featuresAutofocus, continuous shooting, digital zoom, optical zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocusAutofocus, 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 autofocus
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Cover camera10 MP, 26 mm, f/2.2 , 1.22 µm, 1/3"
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Selfie camera
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Selfie camera typeSingleSingle
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Selfie camera4 MP, f/1.8 , 2.0 µm16 MP, f/2.2 , 1.0 µm, (wide)
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Selfie camera resolution-4608 x 3456 pixels
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Selfie camera features-Face unlock, HDR, face detection
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Selfie camera video4K@30fps, 1080p@30fps, gyro-EIS1080p@30fps
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Sound
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3.5mm jackNoYes
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LoudspeakerYes, with stereo speakersYes
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EarpieceYesYes
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Multimedia
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RadioNoStereo FM radio, RDS, recording
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11axWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYes-
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WLAN WiFi Dual BandYesYes
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USBType-C 3.2Type-C 2.0
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USB On-The-GoYesYes
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Bluetoothv5.2v5.2
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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Bluetooth AptXaptX HD-
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Infrared-Yes
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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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GALILEOYesYes
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BDSYesYes
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Features
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SensorsAccelerometer, barometer, compass, fingerprint, gyroscope, proximityAccelerometer, barometer, compass, fingerprint, gyroscope, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-PoLi-Po
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Battery capacity4400 mAh9600 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingQuick Charge, 25W (50% in 30 min)Yes, 33W
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Wireless reverse chargingYes, 4.5W-
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Fast wireless chargingYes, 15W-
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Tests and performance
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Antutu-370000 (v9)
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Geekbench(single-core)1351 (v5.4)567 (v5.2)
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Geekbench(multi-core)3808 (v5.4)1857 (v5.2)
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Cost
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Price1800 USD240 USD
