Product
Xiaomi Redmi 3s
Xiaomi Redmi 3s
Samsung Galaxy J Max
Samsung Galaxy J Max
Battery
Charging 10W wired -
Music play - Up to 87 h
Talk time - Up to 21 h (3G)
Type Li-Ion 4100 mAh, non-removable Li-Ion 4000 mAh, non-removable
Body
Build Glass front, aluminum back, aluminum frame -
Dimensions 139.3 x 69.6 x 8.5 mm (5.48 x 2.74 x 0.33 in) 186.9 x 108.8 x 8.7 mm (7.36 x 4.28 x 0.34 in)
SIM Nano-SIM + Micro-SIM Nano-SIM + Nano-SIM
Weight 144 g (5.08 oz) 289 g (10.19 oz)
Comms
Bluetooth 4.1, A2DP 4.0, A2DP
Infrared port Yes -
NFC No No
Positioning GPS, GLONASS, BDS GPS, GLONASS
Radio FM radio FM radio, RDS, recording
USB microUSB 2.0 microUSB 2.0, OTG
WLAN Wi-Fi 802.11 b/g/n, Wi-Fi Direct Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
Display
Resolution 720 x 1280 pixels, 16:9 ratio (~294 ppi density) 800 x 1280 pixels, 16:10 ratio (~216 ppi density)
Size 5.0 inches, 68.9 cm2 (~71.1% screen-to-body ratio) 7.0 inches, 142.1 cm2 (~69.9% screen-to-body ratio)
Type IPS LCD TFT
Features
Sensors Accelerometer, gyro, proximity, compass Accelerometer
Launch
Announced 2016, June. Released 2016, June 2016, July. Released 2016, August
Status Discontinued Discontinued
Main Camera
Features LED flash, HDR, panorama LED flash, HDR, panorama
Single 13 MP, f/2.0, PDAF 8 MP, f/1.9, AF
Video 1080p@30fps 720p@30fps
Memory
Card slot microSDXC (uses shared SIM slot) microSDXC (dedicated slot)
Internal 16GB 2GB RAM, 32GB 3GB RAM 8GB 1.5GB RAM
  eMMC 5.1 -
Misc
Colors Gold, Dark Gray, Silver Black, Gold
Models 2016031 SM-T285, SM-T285YD
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 - SIM 1 & SIM 2 (dual-SIM model only)
3G bands HSDPA 900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G bands 3, 5, 40 - India 1, 3, 5, 7, 8, 28, 40
Speed HSPA, LTE HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 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) Spreadtrum SC8830
CPU Octa-core 1.4 GHz Cortex-A53 Quad-core 1.5 GHz Cortex-A7
GPU Adreno 505 Mali-400MP2
OS Android 6.0.1 (Marshmallow), MIUI 9.2 Android 5.1 (Lollipop)
Selfie camera
Single 5 MP, f/2.2 2 MP, f/2.2
Video 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes