Category Breakdown
Oppo R7s
vivo X21i
Performance
60.362.5
Camera
42.442.4
Display
79.579.5
Battery
43.543.5
Build
70.870.8
Overall
58.258.8
Summary
- The Oppo R7s features a 5.5-inch AMOLED display with a resolution of 1080 x 1920 pixels, while the vivo X21i has a larger 6.28-inch Super AMOLED display with a higher resolution of 1080 x 2280 pixels.
- In terms of performance, the R7s is powered by a Snapdragon 615 chipset, whereas the X21i utilizes a more advanced Helio P60 chipset, offering better processing capabilities.
- The camera setup on the R7s includes a 13 MP rear camera and an 8 MP front camera, while the X21i has a dual rear camera system with a 12 MP main sensor and a 5 MP depth sensor, along with a 24 MP front camera for improved selfies.
- The R7s has a 3070 mAh battery with 20W charging, compared to the X21i's 3425 mAh battery with 18W charging.
- Software-wise, the R7s runs on Android 5.1 with ColorOS 2.1, while the X21i operates on Android 8.1 with Funtouch 4, providing a more updated software experience.
Side-by-side Specification Comparison
Oppo R7s
vivo X21i
General
Release Date
2015
2018
Announced
2015
2018
Description
N/A
N/A
Display
Size
5.5"
6.28"
Type
AMOLED
Super AMOLED
Resolution
1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
1080 x 2280 pixels, 19:9 ratio (~402 ppi density)
PPI
1080
1080
Refresh Rate
60Hz
60Hz
Peak Brightness
N/A
N/A
HDR Support
✗
✗
Protection
Corning Gorilla Glass 3
N/A
Performance
Chipset
Qualcomm MSM8939 Snapdragon 615 (28 nm)
Mediatek MT6771 Helio P60 (12 nm)
CPU
Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
GPU
Adreno 405
Mali-G72 MP3
Memory
32GB 4GB RAM
64GB 6GB RAM, 128GB 4GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (uses shared SIM slot)
microSDXC (uses shared SIM slot)
Camera
Main Camera
13 MP
12 MP
Main Camera Details
13 MP, f/2.2, PDAF
12 MP, f/1.8, 1/2.55", 1.4µm, dual pixel PDAF5 MP, f/2.4, (depth)
Front Camera
8 MP
24 MP
Front Camera Details
8 MP, f/2.4
24 MP, f/2.0, 26mm (wide), 1/2.8", 0.9µm
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
N/A
N/A
OIS
✗
✗
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
3070 mAh
3425 mAh
Battery Details
Li-Po 3070 mAh, non-removable
Li-Ion 3425 mAh, non-removable
Charging Details
20W wired, 75% in 30 min
18W wired
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
151.8 x 75.4 x 7 mm (5.98 x 2.97 x 0.28 in)
154.4 x 75 x 7 mm (6.08 x 2.95 x 0.28 in)
Weight
155 g
159 g
Materials
N/A
N/A
Water Resistance
N/A
N/A
Colors
Golden
Black, Aurora White, Ruby Red, Night Purple
Foldable
✗
✗
Connectivity
SIM
Nano-SIM + Micro-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / CDMA / HSPA / LTE
Network Speed
HSPA, LTE Cat4 150/50 Mbps
HSPA, LTE
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
4.0, A2DP
5.0, A2DP, LE
NFC
✗
✗
USB
microUSB 2.0, OTG
microUSB 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS
GPS, GLONASS
Software
Operating System
Android 5.1 (Lollipop), ColorOS 2.1
Android 8.1 (Oreo), Funtouch 4
OS Version
Android 5.1 (Lollipop), ColorOS 2.1
Android 8.1 (Oreo), Funtouch 4
Security
Fingerprint
✗
✓
Face Unlock
✗
✗
Sensors
Accelerometer, proximity, compass
Fingerprint (rear-mounted), accelerometer, proximity, compass
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes

