Oppo A55 vs Motorola Moto G51 5G - Detailed Phone Comparison

Detailed Comparison

Specification
Oppo A55
Oppo A55
Oppo

General

Launch Date October 1, 2021 December 16, 2021
Release Year 2021 2021

Physical

Volume 104.03 cm³ 118.69 cm³
Screen Size to Weight Ratio 3.37 "/g 3.27 "/g
Weight 193 g 208 g
Height 163.6 mm 170.5 mm
Width 75.7 mm 76.5 mm
Thickness 8.4 mm 9.1 mm
Foldable Design No No
Available Colors
  • Green
  • Starry Black
  • Rainbow Blue
  • Indigo Blue
  • Bright Silver
  • Aqua Blue

Display

Screen Size 6.51 " 6.8 "
Resolution 720 x 1600 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 82.6 % 85.6 %
Pixel Density 270 PPI 387 PPI
Refresh Rate N/A 120 Hz
Typical Brightness 480 nits N/A
HBM Brightness N/A N/A
Peak Brightness 550 nits N/A

Hardware

Battery Capacity per Screen Area 117.98 mAh/in² 108.13 mAh/in²
Battery Density 48.06 mAh/cm³ 42.13 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support Yes Yes
Chipset Mediatek MT6765G Helio G35 (12 nm) Qualcomm SM4350-AC Snapdragon 480+ 5G (8 nm)
CPU Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) Octa-core (2x2.2 GHz Kryo 460 & 6x1.8 GHz Kryo 460)
GPU PowerVR GE8320 Adreno 619

Connectivity

USB Version 2.0 2.0
OTG Support 1
DisplayPort
DisplayPort Version N/A N/A
USB Features USB Type-C 2.0, OTG USB Type-C 2.0

Software

Operating System Android Android
Initial OS Version 11 11
Maximum OS Version 12

Comparison Summary

Oppo A55 vs. Motorola Moto G51 5G: A User-Centered Comparison

As a technology communications specialist, my aim is to guide you through the nuances of these two devices, focusing on the experience they offer rather than just raw specifications. Let's embark on this comparative journey.

1. Design and Usability Assessment:

FeatureOppo A55Motorola Moto G51 5GUser Experience Impact
Interface DesignColorOS 11.1 (based on Android 11)My UX (based on Android 11, upgradable to 12)Moto G51 offers potentially longer software support and a cleaner Android experience.
Display6.51" IPS LCD (720x1600)6.8" IPS LCD (1080x2400), 120HzMoto G51 boasts a larger, sharper display with smoother scrolling thanks to the higher refresh rate. This significantly impacts visual clarity and responsiveness.
Interaction FlowStandard Android navigationMoto Actions for gesture controlsMoto Actions can provide a more intuitive and personalized interaction experience.
Design Ergonomics193g, 8.4mm thick208g, 9.1mm thickOppo A55 is slightly lighter and thinner, potentially offering a more comfortable one-handed experience.
AccessibilityStandard Android accessibility featuresStandard Android accessibility featuresBoth devices offer basic accessibility features, but further investigation into specific needs is recommended.

2. Narrative-Driven Feature Exploration:

Scenario: Imagine a student using their phone for online classes and casual gaming.

  • Oppo A55: The student might find the A55's lighter weight comfortable for extended use during lectures. However, the lower resolution display might make it less immersive for gaming.
  • Moto G51 5G: The student would appreciate the Moto G51 5G's larger, sharper display and 120Hz refresh rate for a more engaging learning and gaming experience. The smoother scrolling enhances readability and reduces eye strain during long study sessions. Moto Actions, like a double chop for flashlight, could also prove handy.

3. Inclusive Technology Evaluation:

  • For users prioritizing affordability: Both phones fall in the medium price range, but the Moto G51 5G often offers better value for its specifications.
  • For users prioritizing display quality: The Moto G51 5G's superior display makes it a clear winner for media consumption and gaming.
  • For users prioritizing portability: The Oppo A55's lighter and slimmer profile might be preferred.

4. Design-Centric Decision Framework:

While both phones offer decent features, the Moto G51 5G provides a more compelling user experience due to its superior display, faster refresh rate, potential for longer software updates, and unique interaction features like Moto Actions. The Oppo A55's strengths lie in its lighter weight and slimmer profile, which might appeal to users prioritizing portability and comfort.

My Choice: I would choose the Motorola Moto G51 5G. While the Oppo A55 offers a slightly more compact design, the significantly improved display quality and responsiveness of the Moto G51 5G are crucial for a satisfying user experience. The 120Hz refresh rate transforms everyday interactions, making scrolling smoother and animations more fluid. The sharper resolution enhances clarity for everything from reading text to watching videos. Additionally, the potential for software updates ensures the device remains relevant and secure for a longer period. For me, these advantages outweigh the slight difference in size and weight.

Sophia Rodriguez
Sophia Rodriguez

Technology Communications Specialist

Expert in transforming complex technological innovations into accessible, engaging narratives.

Key Strengths:

  • Technology storytelling
  • User experience design analysis
  • Inclusive technology communication
  • Design-driven technology insights

Bridging technical complexity with human-centered understanding.