Product
Vivo S7
Vivo S7
Xiaomi Redmi Note 8T
Xiaomi Redmi Note 8T
Battery
Charging 33W wired 18W wired
Type 4000 mAh Li-Po 4000 mAh, non-removable
Body
Build Glass front, glass back (Gorilla Glass 5) Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frame
Dimensions 158.8 x 74.2 x 7.4 mm (6.25 x 2.92 x 0.29 in) 161.1 x 75.4 x 8.6 mm (6.34 x 2.97 x 0.34 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 170 g (6.00 oz) 200 g (7.05 oz)
Comms
Bluetooth 5.1, A2DP, LE, aptX HD 4.2, A2DP, LE
Infrared port - Yes
NFC Yes Yes
Positioning GPS, GLONASS, GALILEO, BDS GPS, GLONASS, BDS
Radio No FM radio
USB USB Type-C, OTG USB Type-C 2.0, OTG
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
Display
Protection - Corning Gorilla Glass 5
Resolution 1080 x 2400 pixels, 20:9 ratio (~409 ppi density) 1080 x 2340 pixels, 19.5:9 ratio (~409 ppi density)
Size 6.44 inches, 100.1 cm2 (~85.0% screen-to-body ratio) 6.3 inches, 97.4 cm2 (~80.2% screen-to-body ratio)
Type AMOLED IPS LCD
Features
Sensors Fingerprint (under display, optical), accelerometer, proximity, compass Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Launch
Announced 2020, August 03 2019, November 06. Released 2019, November 08
Status Available. Released 2020, August 08 Discontinued
Main Camera
Features Dual-LED dual-tone flash, HDR, panorama LED flash, HDR, panorama
Quad - 48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth)
Triple 64 MP, f/1.9, 26mm (wide), 1/1.72", 0.8µm, PDAF 8 MP, f/2.2, 120˚, 16mm (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (depth) -
Video 4K@30fps, 1080p@30fps, gyro-EIS 4K@30fps, 1080p@30/60/120fps; gyro-EIS
Memory
Card slot No microSDXC (dedicated slot)
Internal 128GB 8GB RAM, 256GB 8GB RAM 32GB 3GB RAM, 64GB 4GB RAM, 128GB 4GB RAM
  UFS 2.1 eMMC
Misc
Colors Black, White, Gradient Blue Starscape Blue, Moonlight White, Moonshadow Grey
Models V2020A M1908C3XG
SAR - 1.02 W/kg (head)     1.18 W/kg (body)    
SAR EU - 0.74 W/kg (head)     1.30 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 1, 3, 4, 5, 8, 34, 38, 39, 40, 41 1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40
5G bands 1, 3, 41, 77, 78, 79 SA/NSA -
Speed HSPA, LTE, 5G HSPA 42.2/5.76 Mbps, LTE (4CA) Cat12 600/50 Mbps
Technology GSM / CDMA / HSPA / LTE / 5G GSM / HSPA / LTE
  CDMA 800 & TD-SCDMA -
Our Tests
Audio quality - Noise -93.9dB / Crosstalk -93.7dB
Battery (old) - Endurance rating 108h
Camera - Photo / Video
Display - 1360:1 contrast ratio, 450 nits max brightness (measured)
Loudspeaker - Voice 78dB / Noise 74dB / Ring 79dB
Performance - AnTuTu: 141077 (v7), 167395 (v8) GeekBench: 5620 (v4.4) GFXBench: 5.9fps (ES 3.1 onscreen)
Platform
Chipset Qualcomm SM7250 Snapdragon 765G 5G (7 nm) Qualcomm SDM665 Snapdragon 665 (11 nm)
CPU Octa-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver) Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
GPU Adreno 620 Adreno 610
OS Android 10, Funtouch 10.5 Android 9.0 (Pie), upgradable to Android 11, MIUI 12.5
Selfie camera
Dual 44 MP, f/2.0, (wide) 8 MP, f/2.3, 105˚ (ultrawide) -
Features HDR HDR, panorama
Single - 13 MP, f/2.0, (wide), 1/3.1", 1.12µm
Video 4K@30/60fps, 1080p@30/240fps 1080p@30fps
Sound
3.5mm jack No Yes
Loudspeaker Yes Yes
  24-bit/192kHz Hi-Res audio -