Category Breakdown
Samsung Galaxy J7 Duo
Xiaomi Redmi S2 (Redmi Y2)
Performance
67.864.3
Camera
27.946.1
Display
80.456.5
Battery
24.225.3
Build
0.282.6
Connectivity
49.347.5
Audio
8.98.9
Overall
38.343.1
Summary
- The Samsung Galaxy J7 Duo features a 5.5-inch Super AMOLED display with a resolution of 720 x 1280 pixels, while the Xiaomi Redmi S2 has a slightly larger 5.99-inch IPS LCD display with a resolution of 720 x 1440 pixels.
- In terms of performance, the J7 Duo is powered by the Exynos 7885 chipset, whereas the Redmi S2 utilizes the Snapdragon 625, both offering adequate performance for daily tasks.
- The camera setup on the J7 Duo includes a 13 MP main sensor and a secondary 5 MP depth sensor, while the Redmi S2 has a 12 MP main sensor and a 5 MP depth sensor, with the latter offering a higher 16 MP selfie camera.
- Battery capacity is slightly higher in the Redmi S2 at 3080 mAh compared to the J7 Duo's 3000 mAh, and it supports faster charging at 10W.
- Both devices run on Android Oreo, with the J7 Duo upgradable to Android Pie and the Redmi S2 featuring MIUI 12 for a different software experience.
Side-by-side Specification Comparison
Samsung Galaxy J7 Duo
Xiaomi Redmi S2 (Redmi Y2)
General
Release Date
2018
2018
Announced
2018
2018
Description
N/A
Also known as Xiaomi Redmi Y2 in India
Display
Size
5.5"
5.99"
Type
Super AMOLED
IPS LCD
Resolution
720 x 1280 pixels, 16:9 ratio (~267 ppi density)
720 x 1440 pixels, 18:9 ratio (~269 ppi density)
PPI
720
720
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
N/A
N/A
Performance
Chipset
Exynos 7885 (14 nm)
Qualcomm MSM8953 Snapdragon 625 (14 nm)
CPU
Octa-core (2x2.2 GHz Cortex-A73 & 6x1.6 GHz Cortex-A53)
Octa-core 2.0 GHz Cortex-A53
GPU
Mali-G71
Adreno 506
Memory
32GB 3GB RAM, 32GB 4GB RAM
32GB 3GB RAM, 64GB 4GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDXC (dedicated slot)
Camera
Main Camera
13 MP, f/1.9, AF5 MP, f/1.9, (depth)
12 MP, f/2.2, 1.25μm, PDAF5 MP, f/2.4, (depth)
Main Camera Features
LED flash, panorama, HDR
LED flash, panorama, HDR
Front Camera
8 MP, f/1.9
16 MP, f/2.5, (wide), 1/3.06" 1.0µm
Front Camera Features
LED flash
HDR, LED flash
Video Recording
1080p@30fps
1080p@30fps (gyro-EIS)
Selfie Video
1080p@30fps
1080p@30fps
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
3000 mAh
3080 mAh
Battery Details
Li-Ion 3000 mAh, removable
Li-Po 3080 mAh, non-removable
Charging Details
N/A
10W wired
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
153.5 x 77.2 x 8.2 mm (6.04 x 3.04 x 0.32 in)
160.7 x 77.3 x 8.1 mm (6.33 x 3.04 x 0.32 in)
Weight
174 g
170 g
Materials
N/A
Glass front, plastic back, plastic frame
Colors
Black, Gold, Rose Gold, White, Blue
Gray, Gold, Rose Gold, Mesmerising Blue, Stunning Black
Foldable
✗
✗
SAR
N/A
0.43 W/kg (head) 1.58 W/kg (body)
Connectivity
SIM
Single SIM (Micro-SIM) or Dual SIM (Micro-SIM, dual stand-by)
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / CDMA / HSPA / LTE
Network Speed
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
4.2, A2DP, LE
4.2, A2DP, LE
NFC
✗
✗
USB
microUSB 2.0
microUSB 2.0
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS, BDS
N/A
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 8.0 (Oreo), upgradable to Android 9.0 (Pie)
Android 8.1 (Oreo), upgradable to Android 9, MIUI 12
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (front-mounted), accelerometer, proximity
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass

