Xiaomi Poco X3 Pro vs Samsung Galaxy A15 5G - Detailed Phone Comparison

Detailed Comparison

Specification

General

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

Physical

Volume 119.33 cm³ 103.28 cm³
Screen Size to Weight Ratio 3.1 "/g 3.25 "/g
Weight 215 g 200 g
Height 165.3 mm 160.1 mm
Width 76.8 mm 76.8 mm
Thickness 9.4 mm 8.4 mm
Foldable Design No No
Available Colors
  • Phantom Black
  • Frost Blue
  • Metal Bronze
  • Brave Black
  • Optimistic Blue
  • Magical Blue
  • Personality Yellow

Display

Screen Size 6.67 " 6.5 "
Resolution 1080 x 2400 1080 x 2340
Aspect Ratio 20:9 19.5:9
Screen-to-Body Ratio 84.6 % 84.3 %
Pixel Density 395 PPI 396 PPI
Refresh Rate 120 Hz 90 Hz
Typical Brightness 450 nits N/A
HBM Brightness N/A 800 nits
Peak Brightness N/A N/A

Hardware

Battery Capacity per Screen Area 115.98 mAh/in² 118.34 mAh/in²
Battery Density 43.24 mAh/cm³ 48.41 mAh/cm³
Battery Capacity 5160 mAh 5000 mAh
NFC Support Yes Yes
Chipset Qualcomm Snapdragon 860 (7 nm) Mediatek Dimensity 6100+ (6 nm)
CPU Octa-core (1x2.96 GHz Kryo 485 Gold & 3x2.42 GHz Kryo 485 Gold & 4x1.78 GHz Kryo 485 Silver) Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU Adreno 640 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, OTG USB Type-C 2.0

Software

Operating System Android Android
Initial OS Version 11 14
Maximum OS Version 12 17

Comparison Summary

1. Specifications Comparison

Design

FeatureXiaomi Poco X3 ProSamsung Galaxy A15 5GPractical Impact
Dimensions165.3 × 76.8 × 9.4 mm160.1 × 76.8 × 8.4 mmPoco X3 Pro is taller and thicker, making the A15 5G slightly more pocketable and easier to handle for some users.
Weight215g200gA15 5G is lighter, making it more comfortable for extended use.
BuildStandardStandardBoth are standard smartphone builds.

Display

FeatureXiaomi Poco X3 ProSamsung Galaxy A15 5GPractical Impact
Size6.67"6.5"Poco X3 Pro offers a slightly larger viewing area, better for media consumption.
Resolution1080x24001080x2340Both are very similar, providing sharp visuals for everyday use.
PPI395396Virtually identical pixel density; very similar sharpness.
TechnologyIPS LCDAMOLEDA15 5G has superior contrast, deeper blacks, and more vibrant colors, better for media consumption, particularly in dark mode.
Refresh Rate120Hz90HzPoco X3 Pro has smoother scrolling and animation for a more fluid user experience, particularly in fast-paced games.
Brightness0 nits800 nitsA15 5G provides dramatically better outdoor visibility in bright sunlight. Poco X3 Pro's brightness is unspecified, making it hard to gauge.

Performance

FeatureXiaomi Poco X3 ProSamsung Galaxy A15 5GPractical Impact
ChipsetQualcomm Snapdragon 860 (7 nm)Mediatek Dimensity 6100+ (6 nm)Poco X3 Pro's Snapdragon 860 is significantly faster for more demanding tasks.
Antutu Score627,869442,500Poco X3 Pro offers better performance in apps and gaming based on benchmark scores.
GPUAdreno 640Mali-G57 MC2Poco X3 Pro has a more powerful GPU, resulting in better gaming performance.

Camera

FeatureXiaomi Poco X3 ProSamsung Galaxy A15 5GPractical Impact
Main Camera48MP, f/1.79, 1/2", Sony IMX58250MP, f/1.8A15 5G has slightly higher resolution. Poco X3 Pro has a slightly wider aperture and known sensor details, which may help in low light.
Selfie Camera20MP, f/2.2, 1/3.4", Samsung S5K3T213MP, f/2.0Poco X3 Pro has a significantly higher resolution, resulting in more detailed selfies. A15 5G has a slightly wider aperture
Wide Angle8MP, f/2.2, 1/4", Omnivision OV88565MP, f/2.2Poco X3 Pro takes more detailed wide-angle photos.
Portrait Mode2MP, f/2.4, 1/5", Omnivision OV02B1BNonePoco X3 Pro offers a dedicated depth sensor for portrait photos with background blur.
Macro2MP, f/2.4, 1/5", Hynix HI-2592MP, f/2.4Both phones offer comparable macro lens cameras.
Video4K@30fps, 1080p up to 960fps1080p@30fpsPoco X3 Pro offers much higher video recording quality and greater slow motion capability.

Battery

FeatureXiaomi Poco X3 ProSamsung Galaxy A15 5GPractical Impact
Capacity5160mAh5000mAhBoth have similar battery capacities for all day battery life with moderate use.
Charging33W fast charging25W fast chargingPoco X3 Pro charges faster, reducing downtime.
RemovableNon-removableNon-removableBoth have non-removable batteries.

Software and Connectivity

FeatureXiaomi Poco X3 ProSamsung Galaxy A15 5GPractical Impact
OSAndroid 11 (upgradable to 12)Android 14 (upgradable to 17)A15 5G has a much newer OS version, offering longer software support and latest features.
WiFi802.11a/b/g/n/ac, MIMO802.11a/b/g/n/acBoth offer similar WiFi standards, with Poco X3 Pro having an extra MIMO function.
Bluetooth5.0, APT-x, LDAC, SBC, AAC5.2A15 5G offers a newer bluetooth version. Poco X3 Pro supports higher quality codecs for Bluetooth audio devices.
GPSGPS, A-GPS, GLONASS, Beidou, GalileoGPS, A-GPS, GLONASS, Beidou, GalileoBoth support standard GPS navigation
SIMDual SIM (Nano + Nano)Dual SIM (Nano + Nano)Both offer Dual SIM support.

Storage, Audio and Security

FeatureXiaomi Poco X3 ProSamsung Galaxy A15 5GPractical Impact
Internal Storage128GB/256GBUnknownPoco X3 Pro offers more internal storage. A15 5G storage options are not specified.
RAM6GB/8GBUnknownPoco X3 Pro provides ample RAM for multitasking. A15 5G RAM is not specified.
Expandable StorageNoNoNeither phone supports expandable storage.
AudioHi-Res, Stereo Speakers2 microphonesPoco X3 Pro has superior audio playback. A15 5G is equipped with two microphones for clearer calls.
SecuritySide-mounted fingerprintSide-mounted fingerprintBoth phones have similar side-mounted fingerprint sensors for security.

Build Quality and Sensors

FeatureXiaomi Poco X3 ProSamsung Galaxy A15 5GPractical Impact
Screen ProtectionGorilla Glass 6UnknownPoco X3 Pro has better screen protection. The A15 5G screen protection is not specified.
SensorsAccelerometer, Compass, Gyro, Proximity, FingerprintAccelerometer, Gyro, Proximity, FingerprintPoco X3 Pro includes a compass sensor.

2. Key Differences Analysis

Xiaomi Poco X3 Pro Advantages:

  • Superior Performance: Significantly faster chipset and GPU, leading to smoother app performance, faster load times, and better gaming.
  • Higher Refresh Rate Display: 120Hz refresh rate for smoother scrolling and animations, particularly advantageous in gaming and fast-paced applications.
  • Better Main Camera: Better main camera with a slightly wider aperture for low-light photography and a higher megapixel selfie camera.
  • Enhanced Audio: Hi-Res Audio and stereo speakers for a more immersive audio experience.
  • Faster Charging: 33W charging is noticeably faster than 25W for shorter charge times.
  • More RAM and Storage: Comes with up to 8 GB RAM and 256 GB internal storage, providing better multitasking and storage capacity.
  • Screen Protection: Corning Gorilla Glass 6 offers robust screen protection.
  • Additional Sensors: Compass sensor offers more complete sensor suite.

Samsung Galaxy A15 5G Advantages:

  • Superior Display Technology: AMOLED display for better contrast, deeper blacks, more vibrant colors, and better power efficiency for dark themes.
  • Better Outdoor Visibility: 800 nits of brightness makes it significantly easier to use outdoors under bright sunlight.
  • Newer Software: Runs the latest Android 14 (upgradable to Android 17) for a longer software support and updated feature set.
  • Newer Bluetooth: Bluetooth 5.2 for improved connectivity and efficiency.
  • Lighter build: 15g lighter than the Poco X3 Pro

Significant Trade-offs:

  • Poco X3 Pro: Lacks the better screen quality of the A15, worse outdoor visibility, older operating system and lower video recording quality and does not have the latest bluetooth technology.
  • Galaxy A15 5G: Slower processor, lower refresh rate, and lower camera specs for the most part. Also, storage options and RAM is unknown.

3. User Profiles & Recommendations

Xiaomi Poco X3 Pro Ideal User:

  • Mobile Gamers: The superior performance and 120Hz refresh rate make it excellent for gaming.
  • Power Users: Those who demand fast app loading, multitasking, and smooth operation.
  • Multimedia Consumers: Users who appreciate good audio quality and video playback.
  • Budget-Conscious Users: Those seeking excellent performance at a lower price point.

Use Cases for Poco X3 Pro:

  • High-fidelity gaming with low latency and high frame rates.
  • Multi-tasking between productivity and social media apps.
  • Watching high-quality movies and shows with high res audio.
  • High-quality video recording and photography.

Samsung Galaxy A15 5G Ideal User:

  • Everyday Users: Those who prioritize a smooth and reliable daily experience with good software support.
  • Multimedia Lovers: Users who consume lots of content and value a vibrant AMOLED display.
  • Outdoor Users: Those who need good visibility in bright sunlight.
  • Users who prefer up-to-date software: Those who want the latest version of android and a longer software support life cycle.

Use Cases for Galaxy A15 5G:

  • Browsing social media and everyday apps with a good-looking display.
  • Watching movies and TV shows with vibrant color and contrast.
  • Taking photos in daylight and well lit environments.
  • Using navigation and other apps under bright sunlight.

4. Decision Framework

Key Questions:

  1. Performance Needs: Do you prioritize gaming and fast app performance, or is a smooth everyday experience sufficient?
  2. Display Preference: Do you value vibrant colors and contrast or prioritize high refresh rate and outdoor visibility?
  3. Software Longevity: Is it important to have the latest software and long term support?

Scenario-Based Recommendations:

  • High-Performance Gamer: Choose Xiaomi Poco X3 Pro for its superior performance, higher refresh rate, better gaming capabilities and fast charging.
  • Everyday Multimedia User with a Need for Outdoor Visibility: Choose Samsung Galaxy A15 5G for its AMOLED screen, latest software and outdoor visibility.
  • Budget-Conscious User: Choose Xiaomi Poco X3 Pro if you are on a tight budget but need good performance, but the A15 5G might be the better choice if you value screen quality over performance.

My Choice and Explanation

Personally, I would choose the Xiaomi Poco X3 Pro. While the Samsung Galaxy A15 5G has a newer operating system, a more vibrant screen, and better outdoor visibility, the Poco X3 Pro offers a significantly better performance, which is crucial for my usage.

Here's why:

  • Performance: The Snapdragon 860 is a significantly more powerful chip that allows for smoother app loading, better multitasking, and a better gaming experience, all of which are important to me.
  • Refresh Rate: The 120Hz refresh rate makes a noticeable difference in everyday use, making scrolling and animations smoother, which is especially useful when browsing the web or using social media, not just when gaming.
  • Fast Charging: 33W fast charging allows me to get back on the go much faster than the A15 5G.
  • Video Quality: The 4k video recording capabilities allow for a greater creative outlet.
  • Price-to-Performance Ratio: The Poco X3 Pro offers excellent value for the performance it delivers.

Although the Galaxy A15 5G has a better screen quality and newer software, the superior performance, faster charging, and the better camera and audio of the Poco X3 Pro are more aligned with my priorities, which are more performance based. For someone who wants to spend less for a high performing phone, the Poco X3 Pro will most likely be the better option.

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.