Compare phones side by side

Oppo A55

Oppo A78 5G
Oppo A55
Oppo A78 5G

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 January 2023. Features 6.56 inches screen with a resolution of 720 x 1,612 pixels and 269 ppi.

Octa-core processor MediaTek Dimensity 700 with up to 8 GB memory and 128 GB storage. It has 5,000 mAh battery.
Head to Head
  • Probably more versatile rear camera
  • Thinner (5%)
  • Higher screen refresh rate
  • May have more memory
  • Battery with better fast charging (45%)
  • It has 5G
  • It has NFC

Specifications

Oppo A55 Oppo A78 5G
Specifications
Brand Oppo Oppo
Model - -
Release Date October 2021 January 2023
Operating System ColorOS (Android 11) ColorOS (Android 12)
Dimensions
Size 163.6 x 75.7 x 8.4 mm
6.44 x 2.98 x 0.33 in		 163.8 x 75.1 x 8.0 mm
6.45 x 2.96 x 0.31 in
Weight 193 g
6.81 oz		 188 g
6.63 oz
Screen
Size 6.51 inches 6.56 inches
Resolution 720 x 1,600 pixels 720 x 1,612 pixels
PPI 270 269
Features - 90Hz
Cameras
Rear Triple camera
50 MP f/1.8 Wide
2 MP f/2.4 Macro
2 MP f/2.4 Depth		 Dual camera
50 MP f/1.8 Wide
2 MP f/2.4 Depth
Front 16 MP f/2.0 Wide 8 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		 MediaTek Dimensity 700
Octa-core processor
7 nm
CPU 4x 2.30 GHz Cortex-A53
4x 1.80 GHz Cortex-A53		 2x 2.20 GHz Cortex-A76
6x 2.00 GHz Cortex-A55
GPU PowerVR GE8320 Mali-G57 MC2
Battery
Capacity 5,000 mAh 5,000 mAh
Features Fast charging 18W Fast charging 33W
Removable False False
Connectivity
5G False True
NFC False True
3.5 mm Audio Jack True True
Micro USB False False
USB Type-C True True
Lightning False False

Size comparison

Oppo A55 Oppo A78 5G

Oppo A55

Oppo A78 5G

6.51"
193 g
6.81 oz

6.56"
188 g
6.63 oz