Product
Xiaomi Redmi Note 8
Xiaomi Redmi Note 8
Samsung Galaxy J7 Prime
Samsung Galaxy J7 Prime
Battery
Charging 18W wired -
Music play - Up to 84 h
Talk time - Up to 21 h (3G)
Type Li-Po 4000 mAh, non-removable Li-Ion 3300 mAh, non-removable
Body
Build Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frame Glass front (Gorilla Glass), aluminum/plastic back, aluminum frame
Dimensions 158.3 x 75.3 x 8.4 mm (6.23 x 2.96 x 0.33 in) 151.7 x 75 x 8 mm (5.97 x 2.95 x 0.31 in)
SIM Nano-SIM + Nano-SIM Nano-SIMNano-SIM + Nano-SIM
Weight 190 (6.70 oz) 167 g (5.89 oz)
Comms
Bluetooth 4.2, A2DP, LE 4.1, A2DP, LE
Infrared port Yes -
NFC No No
Positioning GPS, GLONASS, BDS GPS, GLONASS, BDS
Radio FM radio FM radio
USB USB Type-C 2.0, OTG microUSB 2.0, OTG
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Display
Protection Corning Gorilla Glass 5 Corning Gorilla Glass (market dependent)
Resolution 1080 x 2340 pixels, 19.5:9 ratio (~409 ppi density) 1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
Size 6.3 inches, 97.4 cm2 (~81.7% screen-to-body ratio) 5.5 inches, 83.4 cm2 (~73.3% screen-to-body ratio)
Type IPS LCD PLS LCD
Features
Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass Fingerprint (front-mounted), accelerometer, proximity
  - ANT+
Launch
Announced 2019, August 29. Released 2019, October 16 2016, September 01. Released 2016, November 30
Status Discontinued Discontinued
Main Camera
Features LED flash, HDR, panorama LED flash, panorama, HDR
Quad 48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 120˚ (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth) -
Single - 13 MP, f/1.9, 28mm (wide), AF
Video 4K@30fps, 1080p@30/60/120fps; gyro-EIS 1080p@30fps
Memory
Card slot microSDXC (dedicated slot) microSDXC (dedicated slot)
Internal 32GB 3GB RAM, 64GB 4GB RAM, 64GB 6GB RAM, 128GB 4GB RAM, 128GB 6GB RAM 16GB 3GB RAM, 32GB 3GB RAM, 64GB 3GB RAM
  eMMC 5.1 eMMC 5.1
Misc
Colors Neptune Blue, Moonlight White, Space Black, Nebula Purple, Cosmic Purple Black, Gold, Rose Gold
Models M1908C3JH, M1908C3JG, M1908C3JI SM-G610F, SM-G610Y, SM-G610M, SM-G610
SAR 0.26 W/kg (head)     1.00 W/kg (body)     0.56 W/kg (head)     1.02 W/kg (body)    
SAR EU 0.19 W/kg (head)     1.09 W/kg (body)     0.40 W/kg (head)     1.40 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G bands HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G bands 1, 2, 3, 4, 5, 7, 8, 20, 38, 40 1, 3, 5, 7, 8, 20, 38, 40
Speed HSPA 42.2/5.76 Mbps, LTE (4CA) Cat12 600/50 Mbps HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Technology GSM / HSPA / LTE GSM / HSPA / LTE
  1, 3, 5, 8, 38, 40, 41 -
Our Tests
Audio quality Noise -94.0dB / Crosstalk -93.3dB -
Battery (old) Endurance rating 108h -
Camera Photo / Video -
Display Contrast ratio: 1521:1 (nominal) -
Loudspeaker Voice 78dB / Noise 72dB / Ring 81dB -
Performance AnTuTu: 141915 (v7), 161572 (v8) GeekBench: 5590 (v4.4), 1339 (v5.1) GFXBench: 5.9fps (ES 3.1 onscreen) -
Platform
Chipset Qualcomm SDM665 Snapdragon 665 (11 nm) Exynos 7870 Octa (14 nm)
CPU Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) Octa-core 1.6 GHz Cortex-A53
GPU Adreno 610 Mali-T830 MP1
OS Android 9.0 (Pie), upgradable to Android 11, MIUI 12.5 Android 6.0.1 (Marshmallow), upgradable to Android 9.0 (Pie), One UI
Selfie camera
Features HDR, panorama -
Single 13 MP, f/2.0, (wide), 1/3.1", 1.12µm 8 MP, f/1.9
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes