Product
Xiaomi Redmi 3s
Xiaomi Redmi 3s
Xiaomi Redmi Note 7S
Xiaomi Redmi Note 7S
Battery
Charging 10W wired 18W wired, QC4
Type Li-Ion 4100 mAh, non-removable Li-Po 4000 mAh, non-removable
Body
Build Glass front, aluminum back, aluminum frame Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frame
Dimensions 139.3 x 69.6 x 8.5 mm (5.48 x 2.74 x 0.33 in) 159.2 x 75.2 x 8.1 mm (6.27 x 2.96 x 0.32 in)
SIM Nano-SIM + Micro-SIM Nano-SIM + Nano-SIM
Weight 144 g (5.08 oz) 186 g (6.56 oz)
  - Splash resistant
Comms
Bluetooth 4.1, A2DP 5.0, A2DP, LE
Infrared port Yes Yes
NFC No No
Positioning GPS, GLONASS, BDS GPS, GLONASS, BDS
Radio FM radio FM radio, recording
USB microUSB 2.0 USB Type-C 2.0
WLAN Wi-Fi 802.11 b/g/n, Wi-Fi Direct Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Display
Protection - Corning Gorilla Glass 5
Resolution 720 x 1280 pixels, 16:9 ratio (~294 ppi density) 1080 x 2340 pixels, 19.5:9 ratio (~409 ppi density)
Size 5.0 inches, 68.9 cm2 (~71.1% screen-to-body ratio) 6.3 inches, 97.4 cm2 (~81.4% screen-to-body ratio)
Type IPS LCD IPS LCD
Features
Sensors Accelerometer, gyro, proximity, compass Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Launch
Announced 2016, June. Released 2016, June 2019, May. Released 2019, May
Status Discontinued Discontinued
Main Camera
Dual - 48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF 5 MP, f/2.2, (depth)
Features LED flash, HDR, panorama Dual-LED flash, HDR, panorama
Single 13 MP, f/2.0, PDAF -
Video 1080p@30fps 1080p@30/60/120fps, (gyro-EIS)
Memory
Card slot microSDXC (uses shared SIM slot) microSDXC (uses shared SIM slot)
Internal 16GB 2GB RAM, 32GB 3GB RAM 32GB 3GB RAM, 64GB 4GB RAM
  eMMC 5.1 eMMC 5.1
Misc
Colors Gold, Dark Gray, Silver Onyx Black, Sapphire Blue, Ruby Red, Astro White
Models 2016031 M1901F71
SAR 0.22 W/kg (head)     1.22 W/kg (body)     -
SAR EU 0.62 W/kg (head)     0.43 W/kg (body)     -
Network
2G bands GSM 900 / 1800 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G bands 3, 5, 40 - India 1, 3, 5, 8, 40, 41
Speed HSPA, LTE HSPA 42.2/5.76 Mbps, LTE (2CA) Cat12 600/150 Mbps
Technology GSM / HSPA / LTE GSM / HSPA / LTE
Our Tests
Audio quality Noise -94.3dB / Crosstalk -91.8dB -
Battery (old) Endurance rating 104h -
Camera Photo / Video -
Display Contrast ratio: 1087:1 (nominal), 2.913 (sunlight) -
Loudspeaker Voice 66dB / Noise 70dB / Ring 70dB -
Performance Basemark OS II 2.0: 882Basemark X: 7263 -
Platform
Chipset Qualcomm MSM8937 Snapdragon 430 (28 nm) Qualcomm SDM660 Snapdragon 660 (14 nm)
CPU Octa-core 1.4 GHz Cortex-A53 Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
GPU Adreno 505 Adreno 512
OS Android 6.0.1 (Marshmallow), MIUI 9.2 Android 9.0 (Pie), planned upgrade to Android 10, MIUI 12
Selfie camera
Features - HDR
Single 5 MP, f/2.2 13 MP, f/2.0, (wide), 1/3.1", 1.12µm
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes