BeastCompare - Independent Smartphone Battles & Specifications
Home/Battles/Xiaomi 15 Ultra vs Realme GT 3
Lab Benchmark Battle

Xiaomi 15 Ultra vs Realme GT 3

Direct side-by-side battle analyzing display brightness, chipset benchmark percentiles, multi-camera arrays, battery capacity, and charging speeds.

Smartphone Battle
Comparing 2 devicesSwipe across ⇄
Xiaomi 15 Ultra
· 2025

Xiaomi 15 Ultra

$1599
87.6/ 100
Overall
Exceptional
BeastScore
87.6
Benchmark
Performance95/100
Camera91/100
Battery88/100
Realme GT 3
· 2023

Realme GT 3

$649
87.4/ 100
Overall
Exceptional
BeastScore
87.4
Benchmark
Performance95/100
Camera88/100
Battery82/100

Which Phone Should You Buy: Key Reasons & Hardware Advantages

Swipe across ⇄
Reasons to buy Xiaomi 15 Ultra:
  • ✓Larger 5,410 mAh battery capacity (+810 mAh more capacity)
  • ✓50MP primary camera sensor with 4K/120fps video recording
  • ✓6.73" display with 120Hz ProMotion refresh rate
Reasons to buy Realme GT 3:
  • ✓27g lighter chassis (199g) optimized for one-handed ergonomics
  • ✓$950 lower launch MSRP ($649 vs $1599)
  • ✓50MP primary camera sensor with 4K/120fps video recording

How Do the Specifications Compare Side-by-Side?

Swipe across ⇄
SpecificationXiaomi 15 UltraRealme GT 3
1. Display & Screen
Screen Type & TechLTPO AMOLEDAMOLED
Screen Size6.73"6.74"
Resolution & Density3200x1440 (522 ppi)2772x1240 (450 ppi)
Refresh Rate120 Hz ProMotion144 Hz ProMotion
Brightness3,200 nits peak1,400 nits peak
Screen ProtectionScratch-resistant glassScratch-resistant glass
2. Platform & Performance
Chipset / ProcessorHigh performance SoC High performance SoC
CPU CoresMulti-core high performanceMulti-core high performance
GPU GraphicsIntegrated GraphicsIntegrated Graphics
Operating SystemAndroid 15Android 13
3. Memory & Storage
RAM Memory16 GB16 GB
Internal Storage256GB / 512GB / 1024GB256GB / 512GB / 1024GB
Storage SpeedHigh-speed flashHigh-speed flash
Card SlotNoNo
4. Main Camera Optics
Primary Camera50 MP, f/1.63, OIS, Sony LYT-90050 MP, f/1.9, OIS, Sony IMX890
Telephoto Zoom50 MP (5x optical zoom), f/2.5, OISNone (Digital zoom only)
Ultrawide Camera50 MP, f/1.88 MP, f/2.2
LiDAR / DepthNoneNone
5. Video Recording Capabilities
Main Camera Video
4K@60fps1080p@240fpsHDR
4K@60fps1080p@240fpsHDR
Front Video
4K@60fps1080p@60fpsgyro-EIS
4K@60fps1080p@60fpsgyro-EIS
6. Selfie Camera
Selfie Lens32 MP, f/216 MP, f/2.5
7. Body & Dimensions
Dimensions161.3 x 75.5 x 9.5 mm163.7 x 75.8 x 8.9 mm
Weight226 g199 g
Build MaterialsGlass front, metal/glass frameGlass front, metal/glass frame
SIM TypeNano-SIM / eSIM supportNano-SIM / eSIM support
Water ResistanceIP68IPX4
8. Battery & Charging
Battery Capacity5,410 mAh4,600 mAh
Wired Fast Charging90W wired fast charging240W wired fast charging
Wireless Charging80W wireless chargingNot supported
Reverse ChargingReverse wireless chargingReverse wireless charging
9. Sound & Audio
LoudspeakerStereo speakersStereo speakers
3.5mm Headphone JackNoNo
10. Connectivity & Comms
Wi-Fi StandardWi-Fi 7Wi-Fi 6E
Bluetooth5.45.3
USB Port & SpeedUSB-C 3.2USB-C 2.0
NFCYes (contactless payment)Yes (contactless payment)
11. Sensors & Security
SensorsBiometric fingerprint/face, accelerometer, gyro, compassBiometric fingerprint/face, accelerometer, gyro, compass
Satellite FeaturesEmergency SOS via satellite (select markets)Emergency SOS via satellite (select markets)
12. Colors & Overview
ColorsStandard finishesStandard finishes
Launch Price$1599$649
Editorial Lab Verdict

Xiaomi 15 Ultra edges ahead with a BeastScore of 87.6/100

After comprehensive hardware benchmark comparisons, Xiaomi 15 Ultra ranks as the overall top pick in this matchup. Key differentiators include its advanced processor architecture and verified 91/100 camera rating.

When to buy Xiaomi 15 Ultra:
Higher overall BeastScore: 87.6 vs top rival 87.4 · Larger battery capacity: 5,410 mAh (+810 mAh more)
When to buy Realme GT 3:
Significantly faster wired charging: 240W vs max 90W · Smoother display: 144Hz refresh rate vs 120Hz
Quick Answers

Frequently Asked Questions: Xiaomi 15 Ultra vs Realme GT 3

Which phone is better: Xiaomi 15 Ultra or Realme GT 3?

Xiaomi 15 Ultra leads with an overall BeastScore of 87.6/100 compared to Realme GT 3 (87.4/100), driven by advantages in Higher overall BeastScore: 87.6 vs top rival 87.4 and Larger battery capacity: 5,410 mAh (+810 mAh more).

What are the primary battery and display differences between Xiaomi 15 Ultra and Realme GT 3?

Xiaomi 15 Ultra is equipped with a 6.73-inch display and 5410 mAh battery, while Realme GT 3 features a 6.74-inch display and 4600 mAh battery.

How do the camera capabilities compare between Xiaomi 15 Ultra and Realme GT 3?

In lab hardware evaluations, Xiaomi 15 Ultra scores 91/100 in camera performance, while Realme GT 3 scores 88/100.

Similar Hardware Tier

Related Smartphones (Based on Benchmark Scores)

Samsung Galaxy A27 5G
samsung · 2026

Samsung Galaxy A27 5G

Score: 88/100
Pixel 10 Pro XL
google · 2025

Pixel 10 Pro XL

Score: 87/100
OnePlus Pad 3
oneplus · 2024

OnePlus Pad 3

Score: 87/100
Xiaomi 15
xiaomi · 2024

Xiaomi 15

Score: 88/100
vivo X Fold6 5G
vivo · 2026

vivo X Fold6 5G

Score: 87/100
Oppo Pad 6
oppo · 2026

Oppo Pad 6

Score: 87/100
realme GT 2 Pro
realme · 2022

realme GT 2 Pro

Score: 87/100
Honor Magic V3
honor · 2024

Honor Magic V3

Score: 88/100
Trending Matchups

Related Smartphone Battles & Comparisons

Battle #188 vs 88

Xiaomi 15 Ultra vs Samsung Galaxy A27 5G

Xiaomi 15 Ultra
Xiaomi 15 Ultra
V/S
Samsung Galaxy A27 5G
Samsung Galaxy A27 5G
Compare Both Phones→
Battle #287 vs 87

Realme GT 3 vs Samsung Galaxy Tab S10 FE+

Realme GT 3
Realme GT 3
V/S
Samsung Galaxy Tab S10 FE+
Samsung Galaxy Tab S10 FE+
Compare Both Phones→
Battle #388 vs 87

Xiaomi 15 Ultra vs Pixel 10 Pro XL

Xiaomi 15 Ultra
Xiaomi 15 Ultra
V/S
Pixel 10 Pro XL
Pixel 10 Pro XL
Compare Both Phones→
Battle #487 vs 87

Realme GT 3 vs Pixel 10 Pro XL

Realme GT 3
Realme GT 3
V/S
Pixel 10 Pro XL
Pixel 10 Pro XL
Compare Both Phones→
Battle #588 vs 87

Xiaomi 15 Ultra vs OnePlus Pad 3

Xiaomi 15 Ultra
Xiaomi 15 Ultra
V/S
OnePlus Pad 3
OnePlus Pad 3
Compare Both Phones→
Battle #687 vs 87

Realme GT 3 vs OnePlus Pad 3

Realme GT 3
Realme GT 3
V/S
OnePlus Pad 3
OnePlus Pad 3
Compare Both Phones→
Battle #788 vs 88

Xiaomi 15 Ultra vs Xiaomi 15

Xiaomi 15 Ultra
Xiaomi 15 Ultra
V/S
Xiaomi 15
Xiaomi 15
Compare Both Phones→
Battle #887 vs 87

Realme GT 3 vs Xiaomi Redmi K Pad 2

Realme GT 3
Realme GT 3
V/S
Xiaomi Redmi K Pad 2
Xiaomi Redmi K Pad 2
Compare Both Phones→