Samsung Gear S3 frontier LTE vs vivo X21
Samsung Gear S3 frontier LTE
vivo X21
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Network
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2G networkGSM 900, 1800; GSM 850, 1900GSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMA
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3G networkHSDPA 900, 2100; HSDPA 850, 1900HSDPA 850, 900, 1900, 2100
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4G networkLTELTE frequency band 1(2100), 2(1900), 3(1800), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
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HSPA speedHSPAHSPA
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LTE speedLTELTE
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2016-82018-3
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Status2016-102018
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Design
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BuildStainless Steel 316LFront glass, aluminum body
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SIMElectronic SIM card (e-SIM)Hybrid Dual SIM (Nano-SIM, dual stand-by)
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Height49 mm154.5 mm
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Width46 mm74.8 mm
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Thickness12.9 mm7.4 mm
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Weight62 g156.2 g
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ColorsBlackAurora White, Black, Ruby Red
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Display
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Display typeSuper AMOLED capacitive touchscreenSuper AMOLED capacitive touchscreen
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Physical size1.3 inches6.28 inches
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Resolution360 x 360 pixels1080 x 2280 pixels
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Pixel density278 ppi402 ppi
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Display colors1677721616777216
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ProtectionCorning Gorilla Glass SR+-
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MultitouchYesYes
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Hardware
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CPU-Octa-core
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CPUDual-core 1.0 GHzQuad-core 2.2 GHz Kryo 260
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CPU(second)quad-core 1.8 GHz Kryo 260
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Chipset-Qualcomm SDM660 Snapdragon 660
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GPU-Adreno 512
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Internal storage4 GB64, 128 GB
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Memory RAM768 MB6 GB
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Memory cardmicroSD(uses second SIM slot)
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Memory card max-256 GB
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OS
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OSTizen-based wearable platform 2.3.2Android 8.1 (Oreo)
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Sound
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3.5mm jackNoYes
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LoudspeakerYesYes
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NotificationsVibration; MP3, WAV ringtonesVibration; MP3, WAV ringtones
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Earpiece-Yes
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Multimedia
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RadioNo-
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Radio FM-FM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac
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WLAN WiFi Hotspot-Yes
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WLAN WiFi Direct-Yes
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WLAN WiFi Dual Band-Yes
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USBmicroUSB 2.0
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USB On-The-Go-Yes
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Bluetoothv4.2v5.0
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Bluetooth A2DP-Yes
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bluetooth LE-Yes
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NFCYes-
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYesYes
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Features
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Messaging SMSSMS(threaded view)SMS(threaded view)
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Messaging MMSMMSMMS
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Messaging EmailEmailEmail
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Messaging IMIM-
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Messaging Push Email-Push Email
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JavaNo-
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SensorsAccelerometer, barometer, gyro, heart rateFingerprint (rear-mounted), accelerometer, compass, proximity
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Browser
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HTML-HTML5
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BrowserNo-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity380 mAh3200 mAh
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Battery removableNon-removableNon-removable
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Fast battery charging-Yes
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Talk time72 h-
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Standby time 3G72 h-
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Main camera
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Camera type-Dual
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Main camera12 MP, f/1.8 , 1/2.5" , 1.4 µm
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5 MP, f/2.4
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Primary camera resolution-4032 x 3024 pixels
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Primary camera video-1080p@30fps
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Primary camera Autofocus-dual pixel phase detection autofocus
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Primary camera flash-LED flash
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Camera features-Geo-tagging, HDR, face detection, panorama, touch focus
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Selfie camera
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Selfie camera12 MP, f/2.0
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Selfie camera resolution-4032 x 3024 pixels
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Selfie camera video-1080p@30fps