Compare phones side by side

Oppo A55

Oppo A9 (2020)
Oppo A55
Oppo A9 (2020)

Released in October 2021. Features 6.51 inches screen with a resolution of 720 x 1,600 pixels and 270 ppi.

Octa-core processor MediaTek Helio G35 with up to 6 GB memory and 128 GB storage. It has 5,000 mAh battery.

Released in September 2019. Features 6.5 inches screen with a resolution of 720 x 1,600 pixels and 270 ppi.

Octa-core processor Qualcomm Snapdragon 665 SM6125 with up to 8 GB memory and 128 GB storage. It has 5,000 mAh battery.
Head to Head
  • Thinner (8%)
  • More processing power (9%)
  • Fast charging battery
  • Probably more versatile rear camera
  • May have more memory

Specifications

Oppo A55 Oppo A9 (2020)
Specifications
Brand Oppo Oppo
Model - -
Release Date October 2021 September 2019
Operating System ColorOS (Android 11) ColorOS (Android 9.0)
Dimensions
Size 163.6 x 75.7 x 8.4 mm
6.44 x 2.98 x 0.33 in		 163.6 x 75.6 x 9.1 mm
6.44 x 2.98 x 0.36 in
Weight 193 g
6.81 oz		 195 g
6.88 oz
Screen
Size 6.51 inches 6.5 inches
Resolution 720 x 1,600 pixels 720 x 1,600 pixels
PPI 270 270
Features - -
Cameras
Rear Triple camera
50 MP f/1.8 Wide
2 MP f/2.4 Macro
2 MP f/2.4 Depth		 Quad camera
48 MP f/1.8 Wide
8 MP f/2.3 Ultra Wide
2 MP f/2.4 Depth
2 MP f/2.4 Depth
Front 16 MP f/2.0 Wide 16 MP f/2.0 Wide
Storage
Memory 4 GB
6 GB		 4 GB
8 GB
Fixed 64 GB
128 GB		 128 GB
Removable microSDXC microSDXC
Processor
Chip MediaTek Helio G35
Octa-core processor
12 nm		 Qualcomm Snapdragon 665 SM6125
Octa-core processor
11 nm
CPU 4x 2.30 GHz Cortex-A53
4x 1.80 GHz Cortex-A53		 4x 2.00 GHz Kryo 260 Gold
4x 1.80 GHz Kryo 260 Silver
GPU PowerVR GE8320 Adreno 610
Battery
Capacity 5,000 mAh 5,000 mAh
Features Fast charging 18W -
Removable False False
Connectivity
5G False False
NFC False False
3.5 mm Audio Jack True True
Micro USB False False
USB Type-C True True
Lightning False False

Size comparison

Oppo A55 Oppo A9 (2020)

Oppo A55

Oppo A9 (2020)

6.51"
193 g
6.81 oz

6.5"
195 g
6.88 oz