Xiaomi Redmi 9T vs Samsung Galaxy A55 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 18, 2021 March 15, 2024
Release Year 2021 2024

Physical

Volume 120.44 cm³ 102.25 cm³
Screen Size to Weight Ratio 3.3 "/g 3.1 "/g
Weight 198 g 213 g
Height 162.3 mm 161.1 mm
Width 77.3 mm 77.4 mm
Thickness 9.6 mm 8.2 mm
Foldable Design No No
Available Colors
  • Carbon Gray
  • Ocean Green
  • Sunrise Orange
  • Twilight Blue
  • Navy
  • Iceblue
  • Lilac
  • Lemon

Display

Screen Size 6.53 " 6.6 "
Resolution 1080 x 2340 1080 x 2340
Aspect Ratio 19.5:9 19.5:9
Screen-to-Body Ratio 83.4 % 85.8 %
Pixel Density 395 PPI 390 PPI
Refresh Rate N/A 120 Hz
Typical Brightness 400 nits N/A
HBM Brightness N/A 1000 nits
Peak Brightness N/A N/A

Hardware

Battery Capacity per Screen Area 140.71 mAh/in² 114.78 mAh/in²
Battery Density 49.82 mAh/cm³ 48.9 mAh/cm³
Battery Capacity 6000 mAh 5000 mAh
NFC Support Yes Yes
Chipset Qualcomm SM6115 Snapdragon 662 (11 nm) Exynos 1480 (4 nm)
CPU Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) Octa-core (4x2.75 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
GPU Adreno 610 Xclipse 530

Connectivity

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

Software

Operating System Android Android
Initial OS Version 10 14
Maximum OS Version 18

Comparison Summary

1. Specifications Comparison

Design

FeatureXiaomi Redmi 9TSamsung Galaxy A55Practical Impact
Dimensions162.3 × 77.3 × 9.6 mm161.1 × 77.4 × 8.2 mmA55 is slightly shorter and noticeably thinner, making it feel more modern and potentially more comfortable in hand. 9T is bulkier.
Weight198g213gRedmi 9T is lighter, which may be more comfortable for extended use and carrying.

Display

FeatureXiaomi Redmi 9TSamsung Galaxy A55Practical Impact
Size6.53"6.6"Negligible size difference. Both have relatively large displays suitable for media consumption.
Resolution1080x23401080x2340Both offer a sharp, clear image suitable for general use.
PPI395390Similar pixel densities, resulting in comparable sharpness.
TechnologyIPS LCDAMOLEDAMOLED offers much richer colors, deeper blacks, and better contrast, significantly enhancing the viewing experience, especially for media consumption and dark themes.
Refresh Rate60Hz120Hz120Hz makes scrolling and animations much smoother and more fluid, enhancing overall user experience.
Brightness0 nits0 nitsThe peak brightness is not listed, this information is missing

Performance

FeatureXiaomi Redmi 9TSamsung Galaxy A55Practical Impact
ChipsetQualcomm Snapdragon 662 (11 nm)Exynos 1480 (4 nm)The A55's 4nm chipset is significantly more powerful and energy-efficient, resulting in faster app loading, smoother multitasking, and better gaming performance.
AnTuTu Score174,500713,393The A55's much higher AnTuTu score indicates it is significantly more powerful, with a difference of more than 300%.
GPUAdreno 610Xclipse 530The A55's GPU offers a much more robust graphical experience, making it suitable for gaming and other graphically intensive tasks.

Camera

FeatureXiaomi Redmi 9TSamsung Galaxy A55Practical Impact
Main Camera Resolution48MP50MPA55 has a slightly higher resolution, potentially offering slightly more detailed images.
Main Camera Aperturef/1.79f/1.8Redmi 9T has a slightly wider aperture, which should mean a bit better performance in low light conditions.
Main Camera Sensor Size1/2"1/1.56"A55's larger sensor allows it to capture more light, resulting in better low-light performance and more detailed images.
Selfie Camera Resolution8MP32MPA55 has a significantly higher resolution for selfies, enabling much clearer and more detailed self-portraits.
Selfie Camera Aperturef/2.0f/2.2Redmi 9T has a slightly wider aperture which should be a little better in low light for selfies.
Wide Angle Camera Resolution8MP13MPA55 offers higher resolution for wide angle shots, capturing more detail.
Wide Angle Camera Sensor Size1/4"1/3.06"A55 has a slightly larger sensor for capturing more light.
Depth Camera2MPNoneRedmi 9T includes a dedicated depth sensor for portrait mode; A55 lacks one
Macro Camera2MP5MPA55 has higher resolution for detailed macro photography.
Video Resolution1080p@30fps4K@30fps, 1080p@60fpsA55 can record in much higher 4K resolution for significantly sharper, higher quality video recordings; also features electronic image stabilization (EIS).
Video StabilizationNoEISA55 offers EIS for smoother video recordings.
Slow Motion120 fps240 fpsA55 can record slow motion at double the framerate of the Redmi 9T.
DxOMark ScoreN/AMobile: 108, Photo: 110, Video: 117A55's score demonstrates significantly better real-world camera quality.

Battery

FeatureXiaomi Redmi 9TSamsung Galaxy A55Practical Impact
Capacity6000mAh5000mAhRedmi 9T has a larger battery, potentially offering longer battery life; However, the A55's more efficient chip could balance this.
Charging18W25WA55 charges slightly faster, reducing downtime.
FeaturesReverse Charging, 22.5W charger inbox, Non-removableNon-removableRedmi 9T can charge other devices using its battery, and comes with a faster charger.

Software

FeatureXiaomi Redmi 9TSamsung Galaxy A55Practical Impact
OSAndroid 10Android 14A55 has a much newer OS with updated features and improved security, with promises of future updates.
Max VersionNone Listed18Samsung is commited to providing 4 years of updates for its devices. This means the A55 will have a more up to date OS for many more years than the Redmi 9T.

Connectivity

FeatureXiaomi Redmi 9TSamsung Galaxy A55Practical Impact
WiFi802.11acWiFi 6 (802.11ax)A55 supports the newer and faster WiFi 6 standard for enhanced wireless performance.
Bluetooth5.0 LE5.3A55 has newer bluetooth version for improved performance and features.
GPSGPS, A-GPS, GLONASS, Beidou, GalileoGPS, A-GPS, GLONASS, Beidou, QZSS, GalileoA55 supports additional satellite systems (QZSS), potentially offering more accurate location tracking.
SIMDual SIM (Nano)Dual SIM (Nano/eSIM)A55 offers eSIM support which is more convenient for travelling and easy switching of mobile plans.

Storage

FeatureXiaomi Redmi 9TSamsung Galaxy A55Practical Impact
Internal Storage64GB or 128GB128GB or 256GBA55 offers more storage options for those with many photos, videos, or large apps.
RAM4GB or 6GB8GB or 12GBA55 offers much more RAM for better multitasking, especially with demanding apps and gaming.
Expandable StorageNoNoNeither device offers expandable storage via microSD card.

Audio

FeatureXiaomi Redmi 9TSamsung Galaxy A55Practical Impact
QualityHi-Res Audio, Stereo SpeakersDolby Atmos, Hi-Res Audio, Stereo SpeakersBoth provide Hi-Res Audio and stereo speakers, while A55 additionally has Dolby Atmos for better spatial audio and more immersive sound experience.

Security

FeatureXiaomi Redmi 9TSamsung Galaxy A55Practical Impact
FeaturesSide-mounted Fingerprint SensorBasic Fingerprint SensorThe A55 provides basic fingerprint security. The Redmi 9T provides a more convenient side-mounted sensor.

Build Quality

FeatureXiaomi Redmi 9TSamsung Galaxy A55Practical Impact
Screen ProtectionCorning Gorilla Glass 3Corning Gorilla Glass VictusThe A55's Gorilla Glass Victus offers significantly better scratch and drop protection.

Sensors

FeatureXiaomi Redmi 9TSamsung Galaxy A55Practical Impact
SensorsFingerprint, Accelerometer, Compass, Ultrasonic proximity virtualFingerprint, Accelerometer, Compass, Gyroscope, Barometer, Ultrasonic proximity virtualA55 has a broader suite of sensors such as a Gyroscope for better gaming experience, and Barometer which is useful for environmental monitoring and navigation.

2. Key Differences Analysis

Xiaomi Redmi 9T Advantages:

  • Larger Battery: A 6000mAh battery potentially offers longer battery life.
  • Reverse Charging: Can be used to charge other devices, offering a convenient way to power other devices.
  • Wider Main Camera Aperture: Slightly better low-light photos (f/1.79 vs f/1.8).
  • Dedicated Depth Camera: Offers a dedicated depth camera for portrait mode.
  • Includes Charger: Comes with a 22.5W charger in the box.

Practical Implications: The Redmi 9T is better suited for users who prioritize battery life, value reverse charging, and prefer a side mounted finger print sensor.

Samsung Galaxy A55 Advantages:

  • Superior Display: AMOLED panel with 120Hz refresh rate offers a significantly better viewing experience than the Redmi 9T's IPS LCD.
  • Much More Powerful Chipset: The Exynos 1480 offers significantly faster performance and efficiency for everyday use and gaming.
  • Better Camera System: Higher resolution main, selfie, and wide-angle cameras, and better video recording.
  • Faster Charging: 25W charging for quicker battery top-ups.
  • Newer Software: Comes with Android 14 and promised updates to later versions of Android, with more features and security.
  • Better Build Quality: Corning Gorilla Glass Victus provides superior screen protection.
  • More RAM and Storage Options: Offers more storage and RAM options.
  • Dolby Atmos Audio: Offers more immersive spatial audio.
  • More Sensors: Wider range of sensors including a gyroscope and barometer.
  • eSIM Support: Offers more convenient switching between mobile plans when travelling.

Practical Implications: The A55 excels in almost all areas such as display quality, performance, camera capabilities, build quality, and software.

Trade-offs:

  • The A55 is heavier and more expensive than the Redmi 9T.
  • The Redmi 9T has a larger battery and includes a charger in the box.
  • The Redmi 9T offers a side-mounted fingerprint reader which is preferable for some.

3. User Profiles & Recommendations

Xiaomi Redmi 9T:

  • Ideal User: Budget-conscious users looking for a reliable phone with long battery life for basic tasks. Users who value physical side-mounted fingerprint sensor.
  • Use Cases:
    • Daily communication (calls, texts, social media)
    • Web browsing and email
    • Occasional media consumption
    • Users that require reverse wireless charging.
  • Price-to-Value: The Redmi 9T offers good value for its price for users that require a big battery.

Samsung Galaxy A55:

  • Ideal User: Users who want a high-quality multimedia experience, enjoy gaming, and value a good camera. They are happy to pay a bit more for better performance.
  • Use Cases:
    • High-quality photography and videography.
    • Gaming and graphically intensive tasks.
    • Streaming video and enjoying multimedia content.
    • Multitasking with various apps.
  • Price-to-Value: The A55 offers a premium experience with excellent value for users who need a higher end mid range device.

4. Decision Framework

Key Questions to Consider:

  1. What is your budget? The A55 is likely to be more expensive than the Redmi 9T.
  2. What do you primarily use your phone for? If battery life and basic use is paramount then the Redmi 9T is sufficient. For a high quality experience consider the A55.
  3. Do you prefer a high quality multimedia experience or a long battery life? The Redmi 9T offers a larger battery at the sacrifice of a higher quality display. The A55 provides a premium display at the cost of a slightly smaller battery.

Scenario-Based Recommendations:

  • Budget User: If budget is the primary concern and basic usage and long battery life is needed, the Xiaomi Redmi 9T is sufficient.
  • Multimedia Enthusiast: For users who prioritize display quality, camera capabilities, and smooth performance, the Samsung Galaxy A55 is the superior choice.
  • Gamer: The A55's more powerful chipset, GPU, and higher refresh rate makes it the better option for gaming.
  • Power User: Users who need to run many apps and enjoy multitasking should consider the A55's larger RAM and processing power.

My Choice

I would choose the Samsung Galaxy A55. While the Redmi 9T offers a larger battery and comes with a charger, the A55 provides a much more significant upgrade in nearly every other critical aspect. The superior display quality (AMOLED and 120Hz), the vastly more powerful processor, the much better camera system, and the promise of software updates make it a much better phone for the long term. The A55 offers a more premium and enjoyable user experience for the money with fewer compromises. The slightly smaller battery is a reasonable trade-off given the performance and efficiency of the A55's chipset, especially with the benefits of 25W fast charging. The inclusion of a gyroscope and barometer also makes the A55 a more feature-rich device. For me, the advantages of the A55 clearly outweigh the few benefits of the Redmi 9T, providing a much better overall experience.

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.

Key Strengths:

  • Mobile technology analysis
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Bridging technical complexity with engaging, accessible narratives.