Category Breakdown
OnePlus 7T
vivo V21
Performance
64.864.8
Camera
53.453.2
Display
84.584.5
Battery
48.048.0
Build
77.879.8
Overall
64.764.8
Summary
- The OnePlus 7T features a more premium build with Gorilla Glass 5 on both front and back, while the vivo V21 uses plastic for its back and frame, resulting in a lighter device.
- Both smartphones have a 90Hz AMOLED display, but the V21 has a slightly smaller 6.44-inch screen with a higher pixel density of ~409 ppi compared to the 7T's 6.55-inch display at ~402 ppi.
- In terms of performance, the OnePlus 7T is powered by the Snapdragon 855+, offering superior processing capabilities over the Mediatek Dimensity 800U in the V21.
- The camera setup on the V21 boasts a higher resolution rear camera at 64 MP and a 44 MP selfie camera, compared to the 7T's 48 MP rear and 16 MP front cameras.
- The V21 also has a slightly larger 4000 mAh battery with faster 33W charging, while the 7T has a 3800 mAh battery with 30W charging.
- Software-wise, the OnePlus 7T runs on OxygenOS based on Android 10, upgradable to Android 12, while the V21 operates on Android 11 with Funtouch OS.
Side-by-side Specification Comparison
OnePlus 7T
vivo V21
General
Release Date
2019, September 26
2021, April 27
Announced
2019, September 26
2021, April 27
Description
N/A
Not to be confused with vivo V21 5G
Display
Size
6.55"
6.44"
Type
Fluid AMOLED, 90Hz, HDR10+
AMOLED, 90Hz, HDR10+, 500 nits (typ)
Resolution
1080 x 2400 pixels, 20:9 ratio (~402 ppi density)
1080 x 2400 pixels, 20:9 ratio (~409 ppi density)
PPI
1080
1080
Refresh Rate
90Hz
90Hz
Peak Brightness
N/A
N/A
HDR Support
✓
✓
Protection
Corning Gorilla Glass 5
N/A
Performance
Chipset
Qualcomm SM8150 Snapdragon 855+ (7 nm)
Mediatek Dimensity 800U (7 nm)
CPU
Octa-core (1x2.96 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485)
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
Adreno 640 (700 MHz)
Mali-G57 MC3
Memory
128GB 8GB RAM, 256GB 8GB RAM
128GB 8GB RAM, 256GB 8GB RAM
Expandable Storage
✗
✗
Card Slot
No
microSDXC (uses shared SIM slot)
Camera
Main Camera
48 MP
64 MP
Main Camera Details
48 MP, f/1.6, 26mm (wide), 1/2.0", 0.8µm, PDAF, OIS12 MP, f/2.2, 51mm (telephoto), 1.0µm, PDAF, 2x optical zoom16 MP, f/2.2, 17mm (ultrawide), AF
64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF, OIS8 MP, f/2.2, 120˚, 16mm (ultrawide), 1/4.0", 1.12µm2 MP, f/2.4, (macro)
Front Camera
16 MP
44 MP
Front Camera Details
16 MP, f/2.0, 25mm (wide), 1/3.06", 1.0µm
44 MP, f/2.0, (wide), AF, OIS
Video Recording
4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, Auto HDR, gyro-EIS
4K@30fps (no OIS), 1080p@30/60fps
Selfie Video
1080p@30fps, gyro-EIS
4K@30fps (no OIS), 1080p@30fps
OIS
✓
✓
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
3800 mAh
4000 mAh
Battery Details
Li-Po 3800 mAh, non-removable
4000 mAh
Charging Details
30W wired
33W wired, 63% in 30 min
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
160.9 x 74.4 x 8.1 mm (6.33 x 2.93 x 0.32 in)
159.7 x 73.9 x 7.3 mm (6.29 x 2.91 x 0.29 in)
Weight
190 g
176 g
Materials
Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
Glass front, plastic frame, plastic back
Water Resistance
N/A
N/A
Colors
Frosted Silver, Glacier Blue, White
Dusk Blue, Sunset Dazzle
Foldable
✗
✗
Connectivity
SIM
Nano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / CDMA / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA 42.2/5.76 Mbps, LTE (5CA) Cat18 1200/150 Mbps
HSPA, LTE
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
5.0, A2DP, LE, aptX HD
5.1, A2DP, LE
NFC
✓
✗
USB
USB Type-C 3.1, OTG
USB Type-C 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✗
✗
Radio
✗
✗
Positioning
GPS (L1+L5), GLONASS (G1), BDS (B1), GALILEO (E1+E5a)
GPS, GLONASS, GALILEO, BDS
Software
Operating System
Android 10, upgradable to Android 12, OxygenOS 12.1
Android 11, Funtouch 11.1
OS Version
Android 10, upgradable to Android 12, OxygenOS 12.1
Android 11, Funtouch 11.1
Security
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (under display, optical), accelerometer, gyro, compass
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Audio
Stereo Speakers
✓
✗
Loudspeaker
Yes, with stereo speakers
Yes
Audio Jack
No
No

