Compare phones side by side


OnePlus 7T


Samsung Galaxy A21


OnePlus 7T
Samsung Galaxy A21

Released in September 2019. Features 6.55 inches screen with a resolution of 1,080 x 2,400 pixels and 402 ppi.

Octa-core processor Qualcomm Snapdragon 855+ SM8150-AC with up to 8 GB memory and 256 GB storage. It has 3,800 mAh battery.

Released in June 2020. Features 6.5 inches screen with a resolution of 720 x 1,600 pixels and 270 ppi.

Octa-core processor MediaTek Helio P35 with up to 3 GB memory and 32 GB storage. It has 4,000 mAh battery.

Head to Head
  • Much better quality screen (33%)
  • OLED screen
  • Higher screen refresh rate
  • Probably better rear camera
  • More memory
  • More storage
  • More processing power (11%)
  • Battery with better fast charging (50%)
  • Probably more versatile rear camera
  • Better battery capacity (5%)


Specifications

OnePlus 7T Samsung Galaxy A21
Specifications
Brand OnePlus Samsung
Model - -
Release Date September 2019 June 2020
Operating System OxygenOS (Android 10) One UI (Android 10)
Dimensions
Size 160.9 x 74.4 x 8.1 mm
6.33 x 2.93 x 0.32 in
167.8 x 76.7 x 8.1 mm
6.61 x 3.02 x 0.32 in
Weight 190 g
6.70 oz
193 g
6.81 oz
Screen
Size 6.55 inches 6.5 inches
Resolution 1,080 x 2,400 pixels 720 x 1,600 pixels
PPI 402 270
Features OLED, 90Hz -
Cameras
Rear Triple camera
48 MP f/1.6 Wide
16 MP f/2.2 Ultra Wide
12 MP f/2.2 Telephoto
Quad camera
16 MP f/1.8 Wide
8 MP f/2.2 Ultra Wide
2 MP f/2.4 Macro
2 MP f/2.4 Depth
Front 16 MP f/2.0 Wide 13 MP f/2.0 Wide
Storage
Memory 8 GB 3 GB
Fixed 128 GB
256 GB
32 GB
Removable - microSDXC
Processor
Chip Qualcomm Snapdragon 855+ SM8150-AC
Octa-core processor
7 nm
MediaTek Helio P35
Octa-core processor
12 nm
CPU 1x 2.96 GHz Kryo 485 Prime
3x 2.42 GHz Kryo 485 Gold
4x 1.78 GHz Kryo 485 Silver
4x 2.35 GHz Cortex-A53
4x 1.80 GHz Cortex-A53
GPU Adreno 640 PowerVR GE8320
Battery
Capacity 3,800 mAh 4,000 mAh
Features Fast charging 30W Fast charging 15W
Removable False False
Connectivity
5G False False
NFC True True
3.5 mm Audio Jack False True
Micro USB False False
USB Type-C True True
Lightning False False

Size comparison

OnePlus 7T Samsung Galaxy A21

OnePlus 7T

Samsung Galaxy A21

6.55"
190 g
6.70 oz

6.5"
193 g
6.81 oz