Xiaomi Poco M3 vs Xiaomi Redmi A3x - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date November 27, 2020 May 24, 2024
Release Year 2020 2024

Physical

Volume 120.44 cm³ 106.65 cm³
Screen Size to Weight Ratio 3.3 "/g 3.48 "/g
Weight 198 g 193 g
Height 162.3 mm 168.4 mm
Width 77.3 mm 76.3 mm
Thickness 9.6 mm 8.3 mm
Foldable Design No No
Available Colors
  • Cool Blue
  • Poco Yellow
  • Power Black
  • Midnight Black
  • Olive Green
  • Moonlight White (Starry White)
  • Aurora Green (Ocean Green)

Display

Screen Size 6.53 " 6.71 "
Resolution 1080 x 2340 720 x 1650
Aspect Ratio 19.5:9 21:9
Screen-to-Body Ratio 83.4 % 82.9 %
Pixel Density 395 PPI 268 PPI
Refresh Rate N/A 90 Hz
Typical Brightness 400 nits 500 nits
HBM Brightness N/A N/A
Peak Brightness N/A N/A

Hardware

Battery Capacity per Screen Area 140.71 mAh/in² 111.05 mAh/in²
Battery Density 49.82 mAh/cm³ 46.88 mAh/cm³
Battery Capacity 6000 mAh 5000 mAh
NFC Support No No
Chipset Qualcomm SM6115 Snapdragon 662 (11 nm) Unisoc T603 (22 nm)
CPU Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) Octa-core 1.8 GHz
GPU Adreno 610 8

Connectivity

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

Software

Operating System Android Android
Initial OS Version 10 14
Maximum OS Version 16

Comparison Summary

1. Specifications Comparison

FeatureXiaomi Poco M3Xiaomi Redmi A3xPractical Impact
Design
Dimensions162.3 x 77.3 x 9.6 mm168.4 x 76.3 x 8.3 mmRedmi A3x is taller and thinner; Poco M3 is slightly wider and thicker.
Weight198g193gRedmi A3x is slightly lighter, which might be noticeable during extended use.
Display
Size6.53"6.71"Redmi A3x has a slightly larger display, providing a bit more screen real estate.
Resolution1080x2340720x1650Poco M3 has a sharper display, resulting in clearer text and images.
Pixel Density (PPI)395268Poco M3's higher PPI results in noticeably crisper visuals.
TechnologyIPS LCDIPS LCDBoth offer similar color reproduction and viewing angles.
Refresh Rate60Hz90HzRedmi A3x offers smoother scrolling and animations.
Brightness0 nits0 nitsBrightness is the same (unspecified value), so both perform equally in screen visibility.
Performance
ChipsetQualcomm Snapdragon 662 (11 nm)Unisoc T603 (22 nm)Poco M3's Snapdragon chipset is generally more efficient, but the A3x’s chipset has a better benchmark performance, suggesting slightly faster app loading and smoother operation
AnTuTu Score185,028239,000Redmi A3x is benchmarked higher and may have better perceived performance.
GPUAdreno 610Mali-G57 MP1Poco M3's Adreno 610 is generally more efficient and delivers better gaming capabilities.
Battery
Capacity6000 mAh5000 mAhPoco M3 has a significantly larger battery, potentially offering longer battery life.
Charging18W Fast Charging (Li-Polymer)10W Fast Charging (Li-Ion)Poco M3 charges faster; Li-Polymer may have better longevity.
FeaturesReverse charging, 22.5W in-box chargerNone specifiedPoco M3 can act as a power bank and has a faster charger included.
Camera
Main Camera Resolution48MP (f/1.79)8MP (f/2.2)Poco M3 captures much more detailed images; wider aperture is better in low light.
Selfie Camera Resolution8MP (f/2.0)5MP (f/2.2)Poco M3 captures sharper selfies; wider aperture is better in low light.
Video Recording1080p@30fps; Slow-mo: 120fps1080p@30fps; Slow-mo: 30fpsPoco M3 has a higher slow motion frame rate.
FeaturesTriple camera, digital image stabilizationDual cameraPoco M3 offers more versatile photography options
Software
OSAndroid 10Android 14Redmi A3x has a much newer Android version, offering updated features and security.
Connectivity
WiFi802.11a/b/g/n/ac802.11a/b/g/n/acBoth support common WiFi standards.
Bluetooth5.04.2Poco M3 has a newer Bluetooth version, offering better connection stability and slightly faster transfer speeds.
GPSGPS, A-GPS, GLONASS, Beidou, Galileo, NavIC SystemGPS, A-GPS, GLONASS, BeidouPoco M3 offers more satellite options for more accurate location tracking.
SIMDual SIM (Nano)Dual SIM (Nano)Both support dual SIM cards.
Storage
Internal Storage64/128 GB64/128 GBBoth offer the same storage options.
RAM4/6 GB3/4 GBPoco M3 offers 6GB, allowing for smoother multitasking.
Expandable StorageNoNoNeither phone offers expandable storage via microSD.
Audio
Audio QualityHi-Res Audio, Stereo SpeakersBasic audio featuresPoco M3 provides much better sound quality, suitable for audio enthusiasts.
Security
Security FeaturesSide-mounted fingerprint sensorSide-mounted fingerprint sensorBoth offer the same basic biometric security through a fingerprint sensor
Build Quality
Screen ProtectionCorning Gorilla Glass 3Corning Gorilla Glass 3Both have similar screen protection, offering similar scratch and minor impact resistance.
Sensors
SensorsFingerprint, Accelerometer, Compass, ProximityAccelerometer, ProximityPoco M3 offers additional sensors for a better user experience.

2. Key Differences Analysis

Xiaomi Poco M3 Advantages:

  • Significantly Better Display Resolution and Sharpness: The 1080p display on the Poco M3 provides much clearer text and images, improving the overall visual experience.
  • Larger Battery: The 6000 mAh battery offers potentially longer usage between charges, beneficial for heavy users.
  • Faster Charging & Reverse Charging: 18W fast charging and the capability to reverse charge other devices makes it useful as a backup power bank.
  • Superior Main and Selfie Cameras: The 48MP main and 8MP front cameras deliver significantly better image quality with a wider aperture for low-light situations.
  • Higher RAM option: A 6 GB variant offers smoother multitasking.
  • Better Audio Quality: Stereo speakers and Hi-Res Audio support provide a richer audio experience.
  • More Sensors: Includes a compass in addition to a fingerprint sensor, accelerometer and proximity.
  • More location services: Supports Galileo and NavIC

Xiaomi Redmi A3x Advantages:

  • Newer Android Version: Android 14 provides the latest features, security patches, and potential performance optimizations.
  • Slightly Smoother Display with 90Hz Refresh Rate: Offers a noticeable difference in scrolling and animations, leading to a better visual fluidity.
  • Slightly Higher Benchmark Performance: A higher Antutu score suggests better perceived speed.
  • Lighter Weight: A bit lighter, making it slightly more comfortable for longer use.

Trade-offs:

  • The Poco M3 sacrifices a slightly smoother 90Hz refresh rate for a significantly sharper and higher resolution display.
  • The Redmi A3x gains a newer OS and slightly higher benchmarks but has a lower-resolution display, inferior cameras, a smaller battery, and inferior audio capabilities.

3. User Profiles & Recommendations

Xiaomi Poco M3 Ideal Users:

  • Media Consumers: Users who watch videos, browse the web, and read ebooks will appreciate the sharper display and better audio.
  • Photography Enthusiasts: Individuals who value higher-quality photos and selfies will prefer the better cameras.
  • Heavy Users: People who need longer battery life and fast charging to handle their daily tasks.
  • Multitaskers: Individuals who need to use multiple apps simultaneously will benefit from the option of 6GB of RAM

Use Cases for Poco M3:

  • Long-haul travel: Superior battery life, combined with a higher resolution display makes it great for extended travel.
  • Photography enthusiasts: Capable cameras allow for better picture taking in a variety of settings.
  • Audio enthusiasts: Stereo speakers and Hi-Res Audio enhances the experience when consuming media

Xiaomi Redmi A3x Ideal Users:

  • Users Who Prioritize a Smooth UI: Individuals who prefer a smoother scrolling experience will appreciate the 90Hz refresh rate.
  • Budget-Conscious Buyers: Those who need a newer device with updated software while saving money.
  • Casual Users: Users who primarily perform basic tasks and do not need high-end performance, camera quality or superior audio capabilities.

Use Cases for Redmi A3x:

  • Casual social media browsing: A smoother screen and basic performance are great for simple tasks
  • Everyday communication: Basic communication tasks like calling and texting will work well
  • Basic media consumption: Will work for watching casual videos and listening to podcasts.

Price-to-Value:

  • The Poco M3 offers better specs in key areas like display resolution, camera quality, and battery life, making it a strong contender for those who prioritize these features.
  • The Redmi A3x is a great value for those seeking a more modern OS at a lower price point.

4. Decision Framework

Key Questions for Buyers:

  1. How important is display quality? If having a sharp, high-resolution display is important, the Poco M3 is the better option. If smoothness is your preference over resolution, then the Redmi A3x may be a better pick.
  2. How important is battery life? If you need the longest possible battery life, the Poco M3 has a significantly larger battery and faster charging.
  3. How important is camera quality? If taking good photos and videos is a priority, then the Poco M3 is better.

Scenario-Based Recommendations:

  • Scenario 1: Heavy Smartphone User (Media, Gaming, Social Media): Choose the Xiaomi Poco M3 for its larger battery, superior display resolution, better cameras, better audio, and faster charging.
  • Scenario 2: Casual User on a Tight Budget (Communication, Web Browsing): Choose the Xiaomi Redmi A3x for its newer operating system and slightly smoother refresh rate while saving money.
  • Scenario 3: Balance of Features and Value: Choose the Xiaomi Poco M3 if camera quality, display resolution, better audio, and longer battery life are worth the extra cost. Otherwise, the Xiaomi Redmi A3x offers more value with the latest Android version and a smoother screen.

What I Would Choose and Why:

Based on the analysis, I would choose the Xiaomi Poco M3.

Here's why:

  • Superior Display Experience: The sharper, higher-resolution screen of the Poco M3 is a significant advantage for media consumption, browsing, and everyday use. I find that having higher PPI and sharper text to be an overall better experience.
  • Better Battery Life: The significantly larger battery capacity means I would not need to be concerned about battery life during the day. The faster charging is also a plus.
  • Superior Photography and Video: The better camera quality of the Poco M3 is a significant advantage.
  • Better all-round user experience: The inclusion of additional sensors and superior audio capabilities also makes the device better overall.

While the Redmi A3x has a newer OS and smoother refresh rate, the Poco M3's advantages in critical areas like display, battery, camera, and audio quality make it a better choice for my needs. I am willing to trade the slight smoothness and newest Android version for the overall superior performance and features offered by the Poco M3.

Emily Harper
Emily Harper

Technology Insights Specialist

Dedicated technology writer specializing in mobile device analysis and technology communication. Expert at translating complex smartphone features into clear, actionable insights for diverse audiences.

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