Product
Xiaomi Mi 4s
Xiaomi Mi 4s
₹22,497
Xiaomi Redmi Note 8 Pro
Xiaomi Redmi Note 8 Pro
₹16,999
Battery
Charging 18W wired, QC2, 40% in 60 min 18W wired
Type Li-Ion 3260 mAh, non-removable Li-Po 4500 mAh, non-removable
Body
Build - Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frame
Dimensions 139.3 x 70.8 x 7.8 mm (5.48 x 2.79 x 0.31 in) 161.4 x 76.4 x 8.8 mm (6.35 x 3.01 x 0.35 in)
SIM Nano-SIM + Micro-SIM Nano-SIM + Nano-SIM
Weight 133 g (4.69 oz) 200 g (7.05 oz)
Comms
Bluetooth 4.1, A2DP 5.0, A2DP, LE
Infrared port Yes Yes
NFC No Yes
Positioning GPS, GLONASS, BDS GPS, GLONASS, GALILEO, BDS
Radio No FM radio, recording
USB USB Type-C USB Type-C 2.0
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Display
Protection - Corning Gorilla Glass 5
Resolution 1080 x 1920 pixels, 16:9 ratio (~441 ppi density) 1080 x 2340 pixels, 19.5:9 ratio (~395 ppi density)
Size 5.0 inches, 68.9 cm2 (~69.9% screen-to-body ratio) 6.53 inches, 104.7 cm2 (~84.9% screen-to-body ratio)
Type IPS LCD IPS LCD, HDR, 500 nits (typ)
Features
Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Launch
Announced 2016, February. Released 2016, March 2019, August 29. Released 2019, September 24
Status Discontinued Discontinued
Main Camera
Features Dual-LED dual-tone flash, panorama, HDR LED flash, HDR, panorama
Quad - 64 MP, f/1.9, 26mm (wide), 1/1.72", 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)
Single 13 MP, f/2.0, PDAF -
Video 1080p@30fps, 720p@120fps 4K@30fps, 1080p@30/60/120fps, 720p@960fps, gyro-EIS
Memory
Card slot microSDXC (uses shared SIM slot) microSDXC (uses shared SIM slot)
Internal 64GB 3GB RAM 64GB 4GB RAM, 64GB 6GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM
  eMMC 5.0 UFS 2.1
Misc
Colors Black, White, Gold, Pink Black, Red, Blue, White, Deep Sea Blue, Midnight Blue, Electric Blue, Twilight Orange
Models - 2015105, M1906G7I, M1906G7G
SAR - 1.15 W/kg (head)     1.18 W/kg (body)    
SAR EU - 1.00 W/kg (head)     1.47 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G bands 1, 3, 7, 38, 39, 40, 41 1, 3, 5, 7, 8, 40, 41
Speed HSPA, LTE Cat4 150/50 Mbps HSPA, LTE
Technology GSM / CDMA / HSPA / LTE GSM / HSPA / LTE
  TD-SCDMA -
Our Tests
Audio quality Noise -94.9dB / Crosstalk -82.6dB Noise -93.6dB / Crosstalk -91.9dB
Battery (old) Endurance rating 75h Endurance rating 114h
Camera Photo / Video Photo / Video
Display Contrast ratio: 975:1 (nominal), 2.095 (sunlight) 1326:1 contrast ratio, 640 nits max brightness (measured)
Loudspeaker Voice 73dB / Noise 68dB / Ring 82dB Voice 64dB / Noise 71dB / Ring 82dB
Performance Basemark OS II 2.0: 1545Basemark X: 12990 AnTuTu: 224759 (v7), 279355 (v8) GeekBench: 6999 (v4.4), 1622 (v5.1) GFXBench: 14fps (ES 3.1 onscreen)
Platform
Chipset Qualcomm MSM8992 Snapdragon 808 (20 nm) Mediatek MT6785V/CC Helio G90T (12 nm)
CPU Hexa-core (4x1.4 GHz Cortex-A53 & 2x1.8 GHz Cortex-A57) Octa-core (2x2.05 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU Adreno 418 Mali-G76 MC4
OS Android 5.1 (Lollipop), upgradable to 7.0 (Nougat), MIUI 10 Android 9.0 (Pie), upgradable to Android 11, MIUI 12.5
Selfie camera
Features - HDR, panorama
Single 5 MP, f/2.0 20 MP, f/2.0, (wide), 1/3", 0.9µm
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes
Offers No offers available No offers available