Xiaomi Poco X3 GT vs Oppo A77 - Detailed Phone Comparison

Detailed Comparison

Specification
Oppo A77
Oppo A77
Oppo

General

Launch Date August 19, 2021 June 10, 2022
Release Year 2021 2022

Physical

Volume 110.31 cm³ 98.41 cm³
Screen Size to Weight Ratio 3.42 "/g 3.45 "/g
Weight 193 g 190 g
Height 163.3 mm 163.8 mm
Width 75.9 mm 75.1 mm
Thickness 8.9 mm 8 mm
Foldable Design No No
Available Colors
  • Cloud White
  • Stargaze Black
  • Wave Blue
  • Midnight Black
  • Ocean Blue

Display

Screen Size 6.6 " 6.56 "
Resolution 1080 x 2400 720 x 1612
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 84.9 % 84 %
Pixel Density 399 PPI 269 PPI
Refresh Rate 120 Hz 90 Hz
Typical Brightness 450 nits 480 nits
HBM Brightness N/A 600 nits
Peak Brightness N/A N/A

Hardware

Battery Capacity per Screen Area 114.78 mAh/in² 116.19 mAh/in²
Battery Density 45.33 mAh/cm³ 50.81 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support Yes Yes
Chipset Mediatek Dimensity 1100 (6 nm) Mediatek Dimensity 810 (6 nm)
CPU Octa-core (4x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55) Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU Mali-G77 MC9 Mali-G57 MC2

Connectivity

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

Software

Operating System Android Android
Initial OS Version 11 12
Maximum OS Version 14

Comparison Summary

Alright, let's dive deep into this head-to-head comparison of the Xiaomi Poco X3 GT and the Oppo A77. I'm going to break down the specs, explain what they mean for you, and help you decide which of these phones might be the best fit for your needs.

1. Specifications Breakdown

FeatureXiaomi Poco X3 GTOppo A77Real-World Implications
Design
Dimensions163.3 x 75.9 x 8.9 mm163.8 x 75.1 x 8 mmSimilar size, but the X3 GT is slightly thicker. You might notice a small difference in hand feel, with the A77 being a hair slimmer.
Weight193g190gEssentially the same weight, neither will feel significantly heavier.
Display
Size6.6"6.56"Both have similar-sized screens, the difference is negligible.
Resolution1080 x 2400720 x 1612The Poco X3 GT's display is significantly sharper (123.3% more pixels). Text, images, and videos will look far more detailed. The A77 will appear noticeably less crisp.
Pixel Density (PPI)399269The X3 GT has a much sharper display due to a higher pixel density. This means images and text will look clearer and smoother than on the A77.
TechnologyIPS LCDIPS LCDBoth use IPS LCD technology, so colors and viewing angles should be reasonably similar.
Refresh Rate120Hz90HzThe X3 GT offers smoother scrolling and animations. 120Hz looks and feels noticeably more fluid than 90Hz. The A77 still feels smooth, but not quite as premium.
Performance
ChipsetDimensity 1100Dimensity 810The X3 GT's chipset offers a big jump in performance. Expect much faster app loading, smoother multitasking, and more capable gaming on the X3 GT. The A77 will be slower.
AnTuTu Score745,28342,000The X3 GT's benchmark score is massively higher, which reflects a huge real-world difference in overall performance. This directly translates to faster processing and a smoother experience in any task you throw at it. The A77's score is very low, indicating a very basic level of performance.
GPUMali-G77 MC9Mali-G57 MC2The X3 GT has a much more powerful GPU. Expect significantly better gaming performance, especially for graphically intensive titles.
Camera
Main Camera Resolution64MP13MPThe X3 GT has a much higher resolution main camera, allowing for more detailed photos with higher dynamic range and better low-light performance.
Main Camera Aperturef/1.79f/2.2The X3 GT's wider aperture allows more light to hit the sensor, resulting in better low-light images.
Selfie Camera Aperturef/2.45f/2.0The Oppo A77 has a slightly wider selfie aperture, potentially providing slightly better selfies in low-light conditions.
Video RecordingUp to 4K@30fpsUp to 1080p@30fpsThe X3 GT can record much higher quality video. You'll get sharper, more detailed footage.
Battery Life
Capacity5000mAh3200mAhThe X3 GT has a much larger battery (36% difference). You can expect significantly longer battery life.
Fast Charging67WNoThe X3 GT's fast charging will get you back up and running far more quickly.
Software
OS VersionAndroid 11Android 12 (upgradable to 14)The Oppo A77 has a newer OS and has been promised further upgrades. This should translate to a more modern software experience for at least two more years.
Connectivity
Wi-FiWi-Fi 6Wi-Fi 5The X3 GT has the latest Wi-Fi standard, meaning faster speeds and better performance with Wi-Fi 6 routers.
Bluetooth5.2 LE4.1The X3 GT has a much newer bluetooth version, leading to more efficient connection to wearables and other peripherals.
Storage and RAM
Internal Storage128GB/256GB32GB/64GBThe X3 GT offers significantly more internal storage, which is important as neither phone supports expandable storage. If you want to install a lot of apps, games, or media, you should opt for the X3 GT or be careful with the A77's storage options.
RAM8GB3GB/4GBThe X3 GT's extra RAM will provide much better multitasking capabilities.
Audio
Audio FeaturesDolby Atmos, Stereo SpeakersBasicThe X3 GT will offer a more immersive and higher-quality audio experience. Dolby Atmos and stereo speakers are great for watching movies or playing games. The A77's audio is very basic.
Security
Fingerprint Sensorside-mountedside-mountedBoth phones offer the same type of fingerprint sensor for quick and convenient unlocking.
Build Quality
Screen ProtectionGorilla Glass VictusGorilla Glass 5The X3 GT has superior screen protection, potentially offering better damage resistance in daily usage.
Sensors
SensorsGyroscope, Ultrasonic proximityProximityThe X3 GT offers more comprehensive sensors for advanced features like gaming and enhanced functionality.

2. Key Insights

Xiaomi Poco X3 GT Strengths:

  • Performance Beast: The Dimensity 1100 chipset and 8GB of RAM provide a massive performance advantage over the A77. This means faster apps, smoother multitasking, and better gaming.
  • Superior Display: The higher resolution and 120Hz refresh rate result in a crisper, smoother, and more enjoyable viewing experience.
  • Better Camera System: The 64MP main camera with a wider aperture and 4K video recording will give you much better photos and videos.
  • Extended Battery Life: The significantly larger 5000mAh battery coupled with fast charging will ensure you're not constantly looking for a charger.
  • Advanced Audio: Stereo speakers with Dolby Atmos enhances the audio experience.
  • Faster Connectivity: Wi-Fi 6 and Bluetooth 5.2 for a more stable experience with accessories.

Oppo A77 Strengths:

  • Slightly Newer OS: Comes with Android 12 out of the box, and an upgrade to 14 is promised.
  • More Affordable: It's likely to be more budget-friendly.
  • Slightly Wider Selfie Aperture: The f/2.0 aperture on the selfie camera might give you a small advantage in low-light selfies.

Trade-offs and Limitations

  • The Poco X3 GT doesn't have expandable storage, but with its storage options, this may not be a major problem.
  • The Oppo A77's biggest limiting factor is its low processing power. The weaker processor will be a drag on any demanding tasks. The battery is small and without fast charging.

3. User Profiles and Recommendations

Xiaomi Poco X3 GT is best for:

  • Gamers: The powerful chipset and smooth display make it a great choice for mobile gaming.
  • Power Users: Those who need snappy performance for multitasking and heavy app usage.
  • Photography Enthusiasts: The better camera system provides higher quality photos and videos.
  • Media Consumers: The vibrant display and enhanced audio makes watching movies and videos more enjoyable.

Oppo A77 is best for:

  • Budget-conscious users: Those who prioritize a low price over performance and features.
  • Basic users: Those who primarily use their phone for simple tasks like calling, texting, and browsing social media.
  • Users who prefer the newest OS features: The promise of a newer version of Android may sway some buyers.

4. Buying Decision Framework

Three Questions to Ask Yourself:

  1. How important is performance? If you want smooth multitasking and gaming, the Poco X3 GT is the clear winner.
  2. How much do I value camera quality? If you take lots of photos and videos, the Poco X3 GT's superior camera will be worth the cost.
  3. How important is battery life to me? The Poco X3 GT's battery is much larger, offering substantially more uptime.

Scenario-Based Recommendations:

  • "I need a phone for gaming and heavy app usage": The Poco X3 GT is the best choice due to its powerful processor, better display, and ample RAM.
  • "I just need a basic phone for everyday tasks on a budget": The Oppo A77 may be sufficient, but be aware that its performance is noticeably lower.
  • "I want a phone with the latest software": The Oppo A77 starts with a newer version of Android and a guarantee of further updates.
  • "I prioritize battery life above all else": The Poco X3 GT will comfortably outlast the Oppo A77.

My Choice and Why

If it were my money and my daily driver, I would choose the Xiaomi Poco X3 GT hands down. The sheer performance jump is too significant to ignore, plus it comes with a better camera, superior display, longer battery life with fast charging and better audio. I'm someone who appreciates a fluid experience and enjoy using my phone for everything, from photography and gaming to media consumption and the X3 GT fits that bill perfectly.

The Oppo A77 is simply outclassed in too many key areas for me. If you truly are on an extreme budget and use your phone sparingly, then it might be passable, but the performance hit is too significant for daily use for a tech enthusiast like me. The X3 GT's capabilities, while potentially costing more, justify that price tag very well. It would provide a much more enjoyable and future-proof experience for the long term.

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.