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Compare features, prices and ratings to find the perfect phone for you.
Our Verdict
Analysis
Xiaomi 15 Ultra has the bigger display.
Overall Winner
Xiaomi 15 Ultra
Display Winner
Xiaomi 15 Ultra
Performance Winner
Tie
Camera Winner
Tie
Battery Winner
Tie
Value Winner
Tie
Specifications Comparison
| Feature | Realme P3 | Xiaomi 15 Ultra |
|---|---|---|
| Display size (in) | 6.67 | 6.73 |
| Charging (W) | 45 | 90 |
| Selfie (MP) | 16.00 | 32.00 |
| Weight (g) | 194 | 226 |
| Thickness (mm) | 8.00 | 9.35 |
| Chipset | Qualcomm Snapdragon 6 Gen 4 (4 nm) | Snapdragon 8 Elite |
| OS | Android 15, Realme UI 6.0 | Android 15, HyperOS 2 |
Pros & Cons
Realme P3
Xiaomi 15 Ultra
- Outstanding camera versatility
- Fast wired and wireless charging
- Bright display
- Heavy
- Software still polishing animations
- Limited availability in some regions
Every Spec, Side by Side
Specification
Realme
Realme P3
Xiaomi
Xiaomi 15 Ultra
Battery 3 specs
Type
Si/C Li-Ion 6000 mAh
Market-dependent versions:· Si/C Li-Ion 5410 mAh - Global· Si/C Li-Ion 6000 mAh - China
Charging
45W wired, 50% in 30 min
90W wired, 80W wireless
Capacity
—
5410 mAh
Body 5 specs
Dimensions
163.2 x 75.7 x 8 mm (6.43 x 2.98 x 0.31 in)
161.3 x 75.3 x 9.35 mm
Weight
194 g (6.84 oz)
226 g
SIM
Nano-SIM + Nano-SIM
· Nano-SIM + Nano-SIM· Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time)
IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 2.5m for 30 min)
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
Aerospace-grade glass fiber
Build
—
Glass front, glass-fiber reinforced plastic back or silicone polymer back (eco leather), aluminum frame
Connectivity 8 specs
WLAN
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band
Wi-Fi 802.11 a/b/g/n/ac/6e/7, dual-band or tri-band, Wi-Fi Direct
Bluetooth
5.2, A2DP, LE
6.0, A2DP, LE, aptX HD, aptX Adaptive, LHDC 5
Positioning
GPS, GLONASS, GALILEO, BDS, QZSS
GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5), GLONASS
NFC
No
Yes
Radio
No
No
USB
USB Type-C 2.0
USB Type-C 3.2 Gen 2, DisplayPort, OTG
Infrared port
—
Yes
5G
—
Yes
Display 5 specs
Type
AMOLED, 120Hz, 600 nits (typ), 2000 nits (peak)
LTPO AMOLED
Size
6.67 inches, 107.4 cm2 (~86.9% screen-to-body ratio)
6.73 inches
Resolution
1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
1440 x 3200 pixels
Protection
Mohs level 5
Xiaomi Shield Glass 2.0, Mohs level 6
HDR image support
—
Eu Label 4 specs
Energy
Class A
Class A
Battery
64:57h endurance, 1400 cycles
58:58h endurance, 1000 cycles
Free fall
Class C (90 falls)
Class C (90 falls)
Repairability
Class B
Class C
Features 2 specs
Sensors
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass, barometer
—
Two-way satellite communication (China model only)
Launch 2 specs
Announced
2025, March 17
2025, February 27
Status
Available. Released 2025, March 19
Available. Released 2025, February 27
Main Camera 4 specs
Dual
50 MP, f/1.8, 27mm (wide), 1/2.88", 0.61µm, PDAF
Auxiliary lens
—
Features
LED flash, HDR, panorama
Laser AF, color spectrum sensor, Leica lenses, Dual-LED flash, HDR, panorama, 67mm filter ring holder (optional)
Video
4K@30fps, 1080p@30/60/120fps, gyro-EIS
8K@30fps, 4K@30/60/120fps, 1080p@30/60/120/240/480/960/1920fps, gyro-EIS, Dolby Vision HDR 10-bit rec. (4K@60fps, 1080p)
Quad
—
50 MP + 50 MP + 200 MP + 50 MP
Memory 5 specs
Card slot
microSDXC (uses shared SIM slot)
No
Internal
128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 512GB 12GB RAM
256GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
UFS 2.2
UFS 4.1
RAM
—
16GB
Storage
—
512GB
Misc 4 specs
Colors
Space Silver, Comet Grey, Nebula Pink, Starlight Green
Black, White, Silver Chrome, Green
Models
RMX5079
25010PN30G
Price
£ 261.23
$ 693.75 / £ 1,295.00 / € 812.34
SAR EU
—
1.00 W/kg (head) 1.00 W/kg (body)
Network 7 specs
Technology
GSM / HSPA / LTE / 5G
GSM / HSPA / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 850 / 900 / 2100
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
1, 3, 5, 8, 28, 40, 41
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 42, 48, 66, 71 - International
5G bands
1, 3, 5, 8, 28, 40, 41, 77, 78 SA/NSA
1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 48, 66, 71, 75, 77, 78, 79 SA/NSA - International
Speed
HSPA, LTE, 5G
HSPA, LTE, 5G
—
1, 2, 3, 5, 7, 8, 12, 20, 26, 28, 38, 40, 41, 48, 66, 77, 78, 79, 80, 81, 83, 84, 89 SA/NSA - China
Platform 4 specs
OS
Android 15, Realme UI 6.0
Android 15, HyperOS 2
Chipset
Qualcomm Snapdragon 6 Gen 4 (4 nm)
Snapdragon 8 Elite
CPU
Octa-core (1x2.3 GHz Cortex-A720s & 3x2.2 GHz Cortex-A720s & 4x1.8 GHz Cortex-A520s)
Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
GPU
Adreno 810
Adreno 830
Selfie Camera 3 specs
Single
16 MP, f/2.4, 23mm (wide), 1/3.09", 1.0µm
32 MP
Video
1080p@30fps
4K@30/60fps, 1080p@30/60fps, gyro-EIS
Features
—
HDR, panorama
Sound 3 specs
Loudspeaker
Yes, with stereo speakers
Yes, with stereo speakers
3.5mm jack
No
No
—
24-bit/192kHz Hi-Res & Hi-Res Wireless audio
Qualcomm XPAN (24-bit/96kHz audio)
Our Tests 2 specs
Loudspeaker
—
-24.1 LUFS (Very good)
Battery
—
Active use score 16:13h
Similar Comparisons
Common Questions
Which phone is the best in this comparison?
Xiaomi 15 Ultra has the bigger display.
How are the comparison winners decided?
We compare measurable specs (display size, battery capacity, RAM, charging, weight) and price (USD). When two phones tie or data is missing we mark the category "Depends".
Which is more affordable?
The cheaper option is shown as the value winner above. Prices are USD and may vary by region or retailer.