Motorola Moto G51 5G vs Xiaomi Redmi A2 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date December 16, 2021 March 24, 2023
Release Year 2021 2023

Physical

Volume 118.69 cm³ 115.25 cm³
Screen Size to Weight Ratio 3.27 "/g 3.4 "/g
Weight 208 g 192 g
Height 170.5 mm 164.9 mm
Width 76.5 mm 76.8 mm
Thickness 9.1 mm 9.1 mm
Foldable Design No No
Available Colors
  • Indigo Blue
  • Bright Silver
  • Aqua Blue
  • Aqua Blue
  • Classic Black
  • Sea Green

Display

Screen Size 6.8 " 6.52 "
Resolution 1080 x 2400 720 x 1600
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 85.6 % 81 %
Pixel Density 387 PPI 269 PPI
Refresh Rate 120 Hz N/A
Typical Brightness N/A 400 nits
HBM Brightness N/A N/A
Peak Brightness N/A N/A

Hardware

Battery Capacity per Screen Area 108.13 mAh/in² 117.62 mAh/in²
Battery Density 42.13 mAh/cm³ 43.39 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support Yes No
Chipset Qualcomm SM4350-AC Snapdragon 480+ 5G (8 nm) Mediatek Helio G36 (12 nm)
CPU Octa-core (2x2.2 GHz Kryo 460 & 6x1.8 GHz Kryo 460) Octa-core (4x2.2 GHz Cortex-A53 & 4x1.7 GHz Cortex-A53)
GPU Adreno 619 PowerVR GE8320

Connectivity

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

Software

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

Comparison Summary

Alright, let's dive into a detailed comparison of the Motorola Moto G51 5G and the Xiaomi Redmi A2. I'll break down the specs, highlight key differences, and help you figure out which phone might be the better fit for you.

1. Specifications Breakdown

Here’s a detailed look at how these two phones stack up, keeping in mind what these specs actually mean for day-to-day use.

FeatureMotorola Moto G51 5GXiaomi Redmi A2Real-World Implications
Design
Dimensions170.5 × 76.5 × 9.1 mm164.9 × 76.8 × 9.1 mmMoto G51 is slightly taller; both are similarly wide and thick.
Weight208g192gRedmi A2 is noticeably lighter, better for prolonged use.
FoldableStandardStandardBoth are standard slab smartphones.
Display
Size6.8"6.52"Moto G51 offers a slightly larger screen, potentially better for media consumption.
Resolution1080x2400720x1600Moto G51 has a much sharper display with more detail.
PPI387269Moto G51 display looks crisper; text and images are clearer.
TechnologyIPS LCDIPS LCDBoth use standard LCD tech; no OLED advantage here.
Refresh Rate120Hz60HzMoto G51 has smoother scrolling and animations, providing a better user experience.
Brightness0 nits0 nitsBoth have similar peak brightness; potentially a spec error as 0 nits is not possible.
Performance
ChipsetSnapdragon 480+ 5G (8nm)Helio G36 (12nm)Moto G51's chipset is much faster; better for gaming, multitasking, and app loading.
AnTuTu Score381,000127,000Moto G51 is significantly more powerful; smoother and snappier performance.
GPUAdreno 619PowerVR GE8320Moto G51's GPU allows for better gaming performance, higher graphics settings possible.
Camera
Main Camera50MP f/1.88MP f/2.0Moto G51 captures much more detailed photos, with better low-light performance.
Selfie Camera13MP f/2.25MP f/2.2Moto G51 will take much sharper selfie photos.
Wide Angle Lens8MPNot availableMoto G51 can capture wide scenes, providing versatility.
Macro Lens2MPNot availableMoto G51 can take detailed close-up shots.
Video Recording1080p@30/60/240fps1080p@30fpsMoto G51 offers better video flexibility, with slow-motion capabilities, and higher framerates.
Camera FeaturesPDAF, LAF, RAWManual focusMoto G51 has faster autofocus and more options for detailed photography.
Battery
Capacity5000mAh5000mAhBoth should offer similar battery life; how long it lasts depends on usage patterns.
Charging10W Fast Charging10W Fast ChargingCharging is slow on both devices.
FeaturesNon-removableNon-removableCommon for most modern smartphones.
Software
OSAndroid 11 (upgradable to 12)Android 12Redmi A2 is initially shipped with Android 12.
Connectivity
WiFi802.11ac802.11nMoto G51 has faster Wi-Fi speeds on compatible networks; more bandwidth capacity.
Bluetooth5.15.0Moto G51 has a slightly newer standard, potentially better stability.
GPSFull suiteGPS, A-GPS, GLONASS, BeidouMoto G51 provides more precise and reliable location tracking due to more supported systems.
SIMDual SIMDual SIMBoth support dual SIM for using two numbers at once.
Storage
Internal Storage64/128 GB32/64 GBMoto G51 offers more storage capacity; better for apps, photos, and videos.
RAM4/8 GB2/3/4 GBMoto G51 has more RAM which translates to smoother performance and multitasking.
ExpandableNoNoNeither support additional storage options; limited to built-in storage.
Audio
Audio QualityDolby AtmosBasic audio featuresMoto G51 offers better audio quality with spatial audio, enhanced for music and videos.
Security
Security FeaturesFingerprintBasic securityMoto G51 offers enhanced security with fingerprint sensor.
Sensors
SensorsFingerprint, Proximity, Accelerometer, GyroscopeAccelerometer, Ultrasonic proximity virtual, GravityMoto G51 has more sensors for motion tracking, gaming and biometrics.
Build Quality
Screen ProtectionUnknownUnknownUnable to compare protection due to lack of information.

2. Key Insights

Motorola Moto G51 5G Strengths:

  • Superior Performance: The Snapdragon 480+ 5G chipset, coupled with 4/8GB of RAM and a higher AnTuTu score, makes the Moto G51 a much faster and smoother phone.
  • Enhanced Display: The combination of a larger, higher resolution display (1080p vs 720p) with a 120Hz refresh rate offers a significantly better viewing experience with crisp visuals and smooth scrolling.
  • Better Camera System: The 50MP primary camera, wide-angle, and macro lenses, along with features like PDAF and LAF, provide more versatility and image quality.
  • Improved Connectivity: Newer Wi-Fi and Bluetooth standards for more stable connections.
  • Enhanced Audio: Dolby Atmos support provides better audio immersion with compatible content.
  • Added Security: Fingerprint scanner.
  • More Sensors: Gyroscope and more.

Xiaomi Redmi A2 Strengths:

  • Lighter Build: Weighing 192g, it's notably lighter and potentially more comfortable for extended use.
  • Newer OS: It has Android 12 out of the box, but may lack future updates.
  • Lower Price: Typically, the Redmi A2 comes with a lower price tag, making it an attractive option for budget-conscious buyers.

Trade-offs and Limitations:

  • Moto G51: It’s heavier and might feel a bit bulkier in hand. The lack of expandable storage can be a limitation.
  • Redmi A2: The significantly weaker processor and basic camera system make it less suitable for demanding tasks, gaming, or taking high-quality photos/videos. The screen is lower resolution and with a slower refresh rate.

3. User Profiles and Recommendations

  • Motorola Moto G51 5G:

    • Ideal For:
      • Users who prioritize performance, gaming, and a smooth user experience.
      • Photography enthusiasts looking for a versatile camera setup.
      • Users who consume a lot of media and enjoy detailed, sharp visuals.
    • Use Cases: Gaming, social media, photography, video editing, content creation, and general multitasking.
  • Xiaomi Redmi A2:

    • Ideal For:
      • Budget-conscious buyers who prioritize a simple, lightweight phone.
      • Users with basic smartphone needs like calls, texts, and casual browsing.
      • Individuals who do not require high-end performance or advanced camera features.
    • Use Cases: Basic communication, web browsing, casual media consumption, and as a secondary device.

4. Buying Decision Framework

Here are three questions to help you decide:

  1. Performance Needs: Do you need a phone that can handle demanding apps, games, and heavy multitasking, or are basic tasks sufficient for your needs?
  2. Display Quality: Do you value a sharp, smooth display for media consumption and overall user experience, or is a basic display adequate?
  3. Camera Requirements: How much do you care about having a versatile, high-quality camera system, or is a simple camera enough for your needs?

Scenario-Based Recommendations:

  • Scenario 1: High-Performance User - If you're a gamer, heavy multitasker, or use demanding apps, go with the Motorola Moto G51 5G. Its superior chipset and RAM will deliver a much better experience.

  • Scenario 2: Budget-Conscious User - If cost is your primary concern and you only need a basic phone for everyday tasks, the Xiaomi Redmi A2 may be suitable. Just be aware of the performance limitations.

  • Scenario 3: Photo Enthusiast - For anyone who values taking photos and having flexibility with different shooting modes, the Motorola Moto G51 5G is the clear winner.

My Choice

If I had to choose, I would go with the Motorola Moto G51 5G. While it's a bit heavier, the massive leap in performance, display quality, and camera capabilities makes it the better choice for me. I value smooth, fast performance for daily use, and I'd rather have a phone that's versatile and future-proof than something that might feel limiting after a few months. The Moto G51 5G, despite being an older model, still offers a great price-to-value proposition, especially if you can find a good deal. The benefits offered in performance, display and cameras would be a better fit to my needs.

Alex Griffin
Alex Griffin

Technology analyst specializing in mobile devices and consumer electronics.

Core Expertise

  • Mobile technology analysis
  • Consumer electronics evaluation
  • Technical specification interpretation
  • User experience insights

Professional Mission Empowering readers to make informed technology decisions by transforming intricate specifications into understandable, practical guidance.

Demystifying technology, one device at a time.