Category Breakdown
vivo X21i
vivo X7
Performance
72.970.9
Camera
19.127.9
Display
82.882.8
Battery
26.424.2
Build
0.20.2
Connectivity
56.044.9
Audio
8.98.9
Overall
39.037.1
Summary
- The vivo X21i features a larger 6.28-inch Super AMOLED display with a higher resolution of 1080 x 2280 pixels compared to the 5.2-inch display of the vivo X7, which has a resolution of 1080 x 1920 pixels.
- In terms of performance, the X21i is powered by the Mediatek Helio P60 chipset, offering a more advanced processing capability than the Snapdragon 652 in the X7.
- The X21i also has a superior camera setup with a 12 MP rear camera and a 24 MP selfie camera, while the X7 has a 13 MP rear and 16 MP front camera.
- Battery capacity is higher in the X21i at 3425 mAh versus 3000 mAh in the X7, both supporting 18W charging.
- The X21i runs on Android 8.1 with Funtouch 4, providing a more updated software experience compared to the X7's Android 5.1 with Funtouch 2.5.
Side-by-side Specification Comparison
vivo X21i
vivo X7
General
Release Date
2018
2016
Announced
2018
2016
Description
N/A
N/A
Display
Size
6.28"
5.2"
Type
Super AMOLED
Super AMOLED
Resolution
1080 x 2280 pixels, 19:9 ratio (~402 ppi density)
1080 x 1920 pixels, 16:9 ratio (~424 ppi density)
PPI
1080
1080
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
N/A
N/A
Performance
Chipset
Mediatek MT6771 Helio P60 (12 nm)
Qualcomm MSM8976 Snapdragon 652 (28 nm)
CPU
Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
Octa-core (4x1.8 GHz Cortex-A72 & 4x1.4 GHz Cortex-A53)
GPU
Mali-G72 MP3
Adreno 510
Memory
64GB 6GB RAM, 128GB 4GB RAM
64GB 4GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (uses shared SIM slot)
microSDXC (uses shared SIM slot)
Camera
Main Camera
12 MP, f/1.8, 1/2.55", 1.4µm, dual pixel PDAF5 MP, f/2.4, (depth)
13 MP, f/2.2, PDAF
Main Camera Features
LED flash, HDR, panorama
LED flash, panorama, HDR
Front Camera
24 MP, f/2.0, 26mm (wide), 1/2.8", 0.9µm
16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm
Front Camera Features
N/A
LED flash
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
N/A
N/A
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
3425 mAh
3000 mAh
Battery Details
Li-Ion 3425 mAh, non-removable
Li-Ion 3000 mAh, non-removable
Charging Details
18W wired
18W wired
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
154.4 x 75 x 7 mm (6.08 x 2.95 x 0.28 in)
147.3 x 71.3 x 7.2 mm (5.80 x 2.81 x 0.28 in)
Weight
159 g
151 g
Materials
N/A
N/A
Colors
Black, Aurora White, Ruby Red, Night Purple
Gold, Rose Gold
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Nano-SIM + Nano-SIM
Nano-SIM + Micro-SIM
Network
GSM / CDMA / HSPA / LTE
GSM / HSPA / CDMA2000 / LTE
Network Speed
HSPA, LTE
HSPA, LTE
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Wi-Fi 802.11 b/g/n, hotspot
Bluetooth
5.0, A2DP, LE
4.0, A2DP
NFC
✗
✗
USB
microUSB 2.0, OTG
microUSB 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS
GPS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 8.1 (Oreo), Funtouch 4
Android 5.1 (Lollipop), Funtouch 2.5
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (rear-mounted), accelerometer, proximity, compass
Fingerprint (front-mounted), accelerometer, gyro, proximity, compass

