Xiaomi Redmi Note 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 113.39 cm³ 102.25 cm³
Screen Size to Weight Ratio 3.28 "/g 3.1 "/g
Weight 199 g 213 g
Height 161.2 mm 161.1 mm
Width 77.3 mm 77.4 mm
Thickness 9.1 mm 8.2 mm
Foldable Design No No
Available Colors
  • Nightfall Black
  • Daybreak Purple
  • 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 84 % 85.8 %
Pixel Density 395 PPI 390 PPI
Refresh Rate N/A 120 Hz
Typical Brightness 450 nits N/A
HBM Brightness N/A 1000 nits
Peak Brightness N/A N/A

Hardware

Battery Capacity per Screen Area 117.26 mAh/in² 114.78 mAh/in²
Battery Density 44.09 mAh/cm³ 48.9 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support Yes Yes
Chipset Mediatek Dimensity 800U (7 nm) Exynos 1480 (4 nm)
CPU Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) Octa-core (4x2.75 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
GPU Mali-G57 MC3 Xclipse 530

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 10 14
Maximum OS Version 18

Comparison Summary

1. Specifications Comparison

Here's a detailed comparison of the Xiaomi Redmi Note 9T and Samsung Galaxy A55, focusing on practical implications:

FeatureXiaomi Redmi Note 9TSamsung Galaxy A55Practical Impact
Design
Dimensions161.2 × 77.3 × 9.1 mm161.1 × 77.4 × 8.2 mmA55 is slightly thinner, potentially feeling more comfortable; Note 9T has more overall volume.
Weight199g213gNote 9T is slightly lighter; A55 may feel more substantial.
Display
Size6.53"6.6"Negligible difference, both offer similar viewing area
Resolution1080x23401080x2340Identical sharpness, both offer detailed images.
PPI395390Virtually indistinguishable pixel density; both are very sharp displays
TechnologyIPS LCDAMOLEDA55 offers richer colors, deeper blacks, better contrast and superior power efficiency for dark themes, making media consumption more enjoyable.
Refresh Rate60Hz120HzA55 provides noticeably smoother scrolling and animations, enhancing user experience, particularly in gaming.
Brightness0 nits0 nitsBoth phones have identical peak brightness at 0 nits. It is unclear what is the actual real world performance as this data seems to be wrong.
Performance
ChipsetMediatek Dimensity 800U (7 nm)Exynos 1480 (4 nm)A55's newer chipset offers significantly faster performance and improved efficiency, resulting in snappier app loading and smoother multitasking and gaming.
AnTuTu Score343,150713,393A55 demonstrates significantly higher benchmark performance, indicating it's better suited for resource-intensive tasks like gaming or video editing.
GPUMali-G57 MC3Xclipse 530A55's GPU is more powerful, leading to better graphics rendering, especially noticeable in gaming.
Camera
Main Camera48MP, f/1.79, 1/2", 0.80µm50MP, f/1.8, 1/1.56", 1.00µmA55 has a larger sensor, bigger pixels and higher resolution leading to better low-light performance and potentially more detailed photos.
Selfie Camera13MP, f/2.25, 1/3.1", 1.12µm32MP, f/2.2, 1/2.8", 0.80µmA55's higher resolution selfie camera with larger sensor and wider aperture captures more detailed selfies with more background blur.
Wide Angle LensNone13MP, f/2.2, 1/3.06", 1.12µmA55 offers versatility with an extra wide angle lens for capturing more in each shot.
Portrait Mode (depth)2MP, f/2.4, 1/5", 1.75µmNoneNote 9T has a dedicated depth sensor, providing potentially better portrait mode effects.
Macro Lens2MP, f/2.4, 1/5", 1.75µm5MP, f/2.4A55 has a slightly better macro lens, potentially for better details at close range.
Video4K@30fps, 1080p@30/60fps4K@30fps with EIS, 1080p@30/60fps with EISBoth record up to 4K@30fps. A55 includes Electronic Image Stabilization (EIS) for smoother video, better camera stabilization.
DxOMarkN/AMain: 108 Photo: 110, Video: 117A55 has a better camera system, based on DxOmark scores.
FeaturesBasic camera featuresAdvanced features like OIS, Ultra-stable, RAW 12 bits, Auto framing, night modeA55 has more advanced features, potentially better quality, less blur, and more flexibility when shooting.
Battery
Capacity5000mAh5000mAhBoth phones offer similar battery capacity, suggesting comparable endurance.
Charging18W fast charging25W fast chargingA55 charges faster reducing downtime.
Features22.5W charger inboxNon-removableNote 9T includes a charger, while A55 may require an additional purchase.
Software
OSAndroid 10Android 14A55 offers a newer OS with more features and better security and support.
Max OS VersionNone18Samsung offers many years of OS updates while there is no OS update support for the Note 9T.
Connectivity
Wi-FiWi-Fi 5Wi-Fi 6A55 offers a newer WiFi standard, providing faster speeds, lower latency, and better performance in crowded networks.
Bluetooth5.15.3A55 has the latest Bluetooth technology, potentially a more stable connection and better energy efficiency.
GPSGPS, A-GPS, Galileo, GLONASS (L1)GPS, A-GPS, GLONASS, Beidou, QZSS, GalileoA55 supports more satellite systems for better location accuracy
SIMDual SIMDual SIM / eSIMA55 offers eSIM for digital carrier switching, offering more flexibility
Storage
Internal64GB/128GB128GB/256GBA55 offers more storage variants.
RAM4GB8GB/12GBA55 offers higher RAM options for better multitasking and future proofing.
ExpandableNoNoNeither phone offers expandable storage.
Audio
QualityHi-Res Audio, Stereo SpeakersDolby Atmos, Hi-Res Audio, Stereo SpeakersA55 offers Dolby Atmos for a better immersive audio experience.
Security
FeaturesSide-mounted fingerprint sensorBasic fingerprint sensorNote 9T features a more advanced side-mounted fingerprint sensor.
Build Quality
ProtectionCorning Gorilla Glass 5Corning Gorilla Glass VictusA55 offers more robust screen protection.
Sensors
SensorsFingerprint, Accelerometer, Compass, Gyroscope, Ultrasonic proximity virtualFingerprint, Accelerometer, Compass, Gyroscope, Barometer, Ultrasonic proximity virtualA55 includes a Barometer for environmental sensing, useful for advanced users.

2. Key Differences Analysis

Xiaomi Redmi Note 9T Advantages:

  • Slightly Lighter: At 199g, it's more comfortable for extended use compared to the 213g of the A55.
  • Side-Mounted Fingerprint Sensor: May be considered more ergonomic by some users than the basic fingerprint sensor of the A55.
  • Included Charger: Comes with a 22.5W charger in the box, a potential cost saving.
  • Slightly Larger Pixel Size in Selfie Camera: The selfie camera has larger pixel size (1.12 µm vs. 0.80 µm), potentially better in low light, although this is unlikely, given the rest of the sensor specifications.
  • Manual Focus: Has manual focus option for users who like to tweak the camera settings, allowing for more creative photos.
  • Dedicated Depth Sensor: Allows for better portrait photography than a software-only implementation.

Samsung Galaxy A55 Advantages:

  • Superior Display: AMOLED screen with 120Hz refresh rate offers much better visual experience, ideal for media consumption, gaming and daily use.
  • Faster Performance: Newer Exynos 1480 chipset results in substantially better performance, smoother multitasking and a snappier user experience.
  • Better Camera System: Higher resolution main and front cameras with larger sensor sizes, along with OIS and a dedicated wide angle lens offer better image quality and versatility.
  • Faster Charging: 25W fast charging allows for quicker battery top-ups, minimizing downtime.
  • Newer Software: Ships with Android 14 and has better long-term software support and updates.
  • More Storage and RAM: Higher storage options (up to 256GB) and RAM (up to 12GB) for more space for media and more efficient multitasking.
  • Enhanced Audio: Dolby Atmos support provides a more immersive audio experience.
  • Advanced Connectivity: Supports Wi-Fi 6 and Bluetooth 5.3 offering faster, more stable connections.
  • Better Build Quality Gorilla Glass Victus screen protection offers more resistance to scratches and impact damage.
  • Extra Sensors Includes barometer that makes the phone suitable for different use-cases.
  • eSIM support The ability to switch between carriers easily makes traveling more convenient.

Trade-offs:

  • The Xiaomi Redmi Note 9T is lighter and includes a charger, while the Samsung Galaxy A55 is heavier and may require an extra purchase of a charger.
  • The A55 has a premium display and superior performance, the Note 9T has a lower price point.

3. User Profiles & Recommendations

Xiaomi Redmi Note 9T:

  • Ideal User: Budget-conscious individuals who need a reliable phone for daily tasks, who prefer side-mounted fingerprint sensor, that don't mind an older display.
  • Use Cases: Basic web browsing, social media, casual gaming, and standard photography.
  • Price-to-Value: Offers good value for basic smartphone functionalities, but its age is a major downside.

Samsung Galaxy A55:

  • Ideal User: Tech enthusiasts or those who prioritize a high-quality display, performance, and versatile camera. Gamers and media consumers will also benefit significantly.
  • Use Cases: High-quality media consumption, mobile gaming, photography, video creation, extensive multitasking.
  • Price-to-Value: More expensive than the Note 9T, but offers significantly better features and performance. Better value for people willing to pay more.

4. Decision Framework

Here are three key questions to help buyers decide:

  1. What is your budget? The Redmi Note 9T is a budget phone, while the Samsung Galaxy A55 is more expensive. The Xiaomi might be the better choice for those on a budget, with lower performance and worse features.
  2. How important is performance and display quality? If you prioritize gaming, video streaming, or a generally smooth experience, the A55's AMOLED display, higher refresh rate and powerful chipset are better. The Note 9T offers basic performance and a less vivid display.
  3. What are your camera needs? The A55 features a better camera system with more features. The Note 9T has a simpler camera that might be sufficient for basic use cases.

Scenario-Based Recommendations:

  • Budget-Conscious Users: If price is the primary concern and basic functionality is sufficient, the Xiaomi Redmi Note 9T is an option, however, it's important to consider that the technology is 3 years old.
  • Media Enthusiasts/Gamers: For users who prioritize display quality, smooth performance, and advanced camera features, the Samsung Galaxy A55 is the better choice.
  • Power users: Those looking for the most robust performance and features would benefit the most from the Samsung Galaxy A55, due to its long term software support, better camera, better connectivity, higher RAM and Storage options, much better performance, better security, and an overall better experience.

My Choice

I would choose the Samsung Galaxy A55. While the Xiaomi Redmi Note 9T is cheaper, the A55 offers a significantly superior overall experience. The AMOLED display, 120Hz refresh rate, vastly superior performance, better camera system, faster charging, newer software, more RAM and storage options make it a much better device for my needs, which include daily use, media consumption and some light gaming. Also the fact that the Note 9T will not receive any updates makes the decision to choose the Galaxy A55 easier. The slightly higher cost is justified by the significant improvements in almost all aspects of the phone.

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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