Category Breakdown
Oppo R7
Samsung Galaxy J7 Duo
Performance
56.667.8
Camera
19.127.9
Display
80.280.4
Battery
20.924.2
Build
0.20.2
Connectivity
47.549.3
Audio
8.98.9
Overall
32.038.3
Summary
- The Oppo R7 features a 5.0-inch AMOLED display with a resolution of 1080 x 1920 pixels, offering a higher pixel density compared to the Samsung Galaxy J7 Duo's 5.5-inch Super AMOLED display at 720 x 1280 pixels.
- In terms of performance, the R7 is powered by a Qualcomm Snapdragon 615 chipset, while the J7 Duo utilizes the Exynos 7885, which has a more advanced architecture.
- Both phones have a 13 MP rear camera, but the J7 Duo's f/1.9 aperture may provide better low-light performance.
- The R7 has a smaller 2320 mAh battery compared to the J7 Duo's 3000 mAh, which suggests longer usage time for the latter.
- Software-wise, the R7 runs on Android 4.4.2 with ColorOS 2.1, while the J7 Duo operates on Android 8.0, offering a more updated user experience.
- Build quality shows the R7 is lighter and slimmer, whereas the J7 Duo is bulkier.
Side-by-side Specification Comparison
Oppo R7
Samsung Galaxy J7 Duo
General
Release Date
2015
2018
Announced
2015
2018
Description
N/A
N/A
Display
Size
5"
5.5"
Type
AMOLED
Super AMOLED
Resolution
1080 x 1920 pixels, 16:9 ratio (~445 ppi density)
720 x 1280 pixels, 16:9 ratio (~267 ppi density)
PPI
1080
720
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
Corning Gorilla Glass 3
N/A
Performance
Chipset
Qualcomm MSM8939 Snapdragon 615 (28 nm)
Exynos 7885 (14 nm)
CPU
Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
Octa-core (2x2.2 GHz Cortex-A73 & 6x1.6 GHz Cortex-A53)
GPU
Adreno 405
Mali-G71
Memory
16GB 3GB RAM
32GB 3GB RAM, 32GB 4GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (uses shared SIM slot)
microSDXC (dedicated slot)
Camera
Main Camera
13 MP, f/2.2, PDAF
13 MP, f/1.9, AF5 MP, f/1.9, (depth)
Main Camera Features
LED flash, panorama, HDR, Schneider-Kreuznach optics
LED flash, panorama, HDR
Front Camera
8 MP, f/2.4
8 MP, f/1.9
Front Camera Features
N/A
LED flash
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
N/A
1080p@30fps
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
2320 mAh
3000 mAh
Battery Details
Li-Po 2320 mAh, non-removable
Li-Ion 3000 mAh, removable
Charging Details
20W wired, 75% in 30 min
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
143 x 71 x 6.3 mm (5.63 x 2.80 x 0.25 in)
153.5 x 77.2 x 8.2 mm (6.04 x 3.04 x 0.32 in)
Weight
147 g
174 g
Materials
N/A
N/A
Colors
Golden, Silver
Black, Gold, Rose Gold, White, Blue
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Nano-SIM + Micro-SIM
Single SIM (Micro-SIM) or Dual SIM (Micro-SIM, dual stand-by)
Network
GSM / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA, LTE Cat4 150/50 Mbps
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
4.0, A2DP
4.2, A2DP, LE
NFC
✗
✗
USB
microUSB 2.0, OTG
microUSB 2.0
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS
GPS, GLONASS, BDS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 4.4.2 (KitKat), ColorOS 2.1
Android 8.0 (Oreo), upgradable to Android 9.0 (Pie)
Fingerprint
✗
✓
Face Unlock
✗
✗
Sensors
Accelerometer, proximity, compass
Fingerprint (front-mounted), accelerometer, proximity

