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vivo X21
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Oppo Find X
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vivo X21

Oppo Find X
Our video review on Youtube
Network
Technology GSM / CDMA / HSPA / LTE GSM / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
  CDMA 800 & TD-SCDMA
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G Network 1, 2, 3, 5, 8, 34, 38, 39, 40, 41 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 32, 66, 34, 38, 39, 40, 41
Speed HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps HSPA 42.2/5.76 Mbps, LTE (4CA) Cat16 1024/150 Mbps
Launch
Announced 2018, March 2018, June. Released 2018, July
Status Available. Released 2018, March Discontinued
Body
Dimensions 154.5 x 74.8 x 7.4 mm (6.08 x 2.94 x 0.29 in) 156.7 x 74.2 x 9.6 mm (6.17 x 2.92 x 0.38 in)
Weight 156.2 g (5.50 oz) 186 g (6.56 oz)
Build Glass front (Gorilla Glass 3), aluminum back, aluminum frame Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
SIM Hybrid Dual SIM (Nano-SIM, dual stand-by) Dual SIM (Nano-SIM, dual stand-by)
Display
Type Super AMOLED AMOLED
Size 6.28 inches, 98.4 cm2 (~85.2% screen-to-body ratio) 6.42 inches, 101.2 cm2 (~87.0% screen-to-body ratio)
Resolution 1080 x 2280 pixels, 19:9 ratio (~402 ppi density) 1080 x 2340 pixels, 19.5:9 ratio (~401 ppi density)
Protection Corning Gorilla Glass 3 Corning Gorilla Glass 5
Platform
OS Android 8.1 (Oreo), Funtouch 4 Android 8.1 (Oreo), upgradable to Android 10, ColorOS 7.0
Chipset Qualcomm SDM660 Snapdragon 660 (14 nm) Qualcomm SDM845 Snapdragon 845 (10 nm)
CPU Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) Octa-core (4x2.8 GHz Kryo 385 Gold & 4x1.7 GHz Kryo 385 Silver)
GPU Adreno 512 Adreno 630
Memory
Card slot microSDXC (uses shared SIM slot) No
Internal 64GB 6GB RAM, 128GB 6GB RAM 128GB 8GB RAM, 256GB 8GB RAM
 eMMC 5.1 UFS 2.1
Main Camera
Modules 12 MP, f/1.8, 1/2.55", 1.4µm, dual pixel PDAF
5 MP, f/2.4, (depth)		 Motorized pop-up 16 MP, f/2.0, 23mm (wide), 1/2.6", 1.22µm, PDAF, OIS
Motorized pop-up 20 MP, f/2.0, (depth)
Features LED flash, HDR, panorama LED flash, HDR, panorama
Video 1080p@30fps 4K@30fps, 1080p@240fps, 720p@480fps
Selfie Camera
Modules 12 MP, f/2.0, (wide), 1/2.8", 1.28µm Motorized pop-up 25 MP, f/2.0, 13mm (ultrawide)
Motorized pop-up SL 3D, (depth/biometrics sensor)
Features Auto-HDR
Video 1080p@30fps 1080p@30fps
ADVERTISEMENT
Sound
Loudspeaker Yes Yes
3.5mm jack Yes No
 32-bit/192kHz Hi-Res audio
Comms
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth 5.0, A2DP, LE 5.0, A2DP, LE
Positioning GPS, GLONASS GPS, GLONASS, BDS
NFC No No
Infrared port No No
Radio FM radio No
USB microUSB 2.0, OTG USB Type-C 2.0, OTG
Features
Sensors Fingerprint (rear-mounted), accelerometer, proximity, compass Face ID, accelerometer, gyro, proximity, compass
Battery
Type Li-Ion 3200 mAh, non-removable Li-Ion 3730 mAh, non-removable - Standard model
Li-Ion 3400 mAh, non-removable - Super Flash Edition
Charging 18W wired 20W wired (Standard model)
50W wired, 100% in 35 min (Super Flash Edition)
Misc
Colors Black, Aurora White, Ruby Red Bordeaux Red, Glacier Blue
Models 1725, X21A CPH1871, PAFM00
Price About 450 EUR About 1950 EUR
Tests
Performance AnTuTu: 291218 (v7), 336630 (v8)
GeekBench: 8018 (v4.4), 2278 (v5.1)
GFXBench: 28fps (ES 3.1 onscreen)
Display Contrast ratio: Infinite (nominal), 3.954 (sunlight)
Loudspeaker Voice 70dB / Noise 75dB / Ring 81dB
Audio quality Noise -93.4dB / Crosstalk -89.3dB
Battery (old) Endurance rating 90h

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