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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 | Oppo Find X3 | Xiaomi 15 Ultra |
|---|---|---|
| Display size (in) | 6.70 | 6.73 |
| Charging (W) | 65 | 90 |
| Weight (g) | 193 | 226 |
| Thickness (mm) | 8.30 | 9.35 |
| Chipset | Qualcomm SM8250-AC Snapdragon 870 5G (7 nm) | Snapdragon 8 Elite |
| OS | Android 11, upgradable to Android 13, ColorOS 13 | Android 15, HyperOS 2 |
Pros & Cons
Oppo Find X3
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
Oppo
Oppo Find X3
Xiaomi
Xiaomi 15 Ultra
Battery 3 specs
Type
Li-Po 4500 mAh
Market-dependent versions:· Si/C Li-Ion 5410 mAh - Global· Si/C Li-Ion 6000 mAh - China
Charging
65W wired, PD, 40% in 10 min
30W wireless, 100% in 80 min
10W reverse wireless
90W wired, 80W wireless
Capacity
—
5410 mAh
Body 5 specs
Dimensions
163.6 x 74 x 8.3 mm (6.44 x 2.91 x 0.33 in)
161.3 x 75.3 x 9.35 mm
Weight
193 g (6.81 oz)
226 g
Build
Glass front (Gorilla Glass), glass back, aluminum frame
Glass front, glass-fiber reinforced plastic back or silicone polymer back (eco leather), aluminum frame
SIM
Nano-SIM + eSIM
· Nano-SIM + Nano-SIM· Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time)
Dust/water resistant
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
Aerospace-grade glass fiber
Connectivity 8 specs
WLAN
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Wi-Fi 802.11 a/b/g/n/ac/6e/7, dual-band or tri-band, Wi-Fi Direct
Bluetooth
5.2, A2DP, LE, aptX HD
6.0, A2DP, LE, aptX HD, aptX Adaptive, LHDC 5
Positioning
GPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5)
GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5), GLONASS
NFC
Yes
Yes
Radio
No
No
USB
USB Type-C 3.1, OTG
USB Type-C 3.2 Gen 2, DisplayPort, OTG
Infrared port
—
Yes
5G
—
Yes
Display 4 specs
Type
LTPO AMOLED, 1B colors, 120Hz, HDR10+, BT.2020, 500 nits (typ), 1300 nits (peak)
LTPO AMOLED
Size
6.7 inches, 108.4 cm2 (~89.6% screen-to-body ratio)
6.73 inches
Resolution
1440 x 3216 pixels, 20:9 ratio (~525 ppi density)
1440 x 3200 pixels
Protection
Corning Gorilla Glass
Xiaomi Shield Glass 2.0, Mohs level 6
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
2021, March 11
2025, February 27
Status
Available. Released 2021, March 19
Available. Released 2025, February 27
Main Camera 3 specs
Quad
50 MP, f/1.8, 26mm (wide), 1/1.56", 1.0µm, multi-directional PDAF, OIS
13 MP, f/2.4, 52mm (telephoto), 1/3.4", 1.0µm, 2x optical zoom, PDAF
50 MP, f/2.2, 16mm, 110˚ (ultrawide), 1/1.56", 1.0µm, multi-directional PDAF
3 MP, f/3.0, (microscope), AF, ring flash, 60x magnification
50 MP + 50 MP + 200 MP + 50 MP
Features
Color spectrum sensor, LED flash, HDR, panorama
Laser AF, color spectrum sensor, Leica lenses, Dual-LED flash, HDR, panorama, 67mm filter ring holder (optional)
Video
4K@30/60fps, 1080p@30/60/240fps; gyro-EIS; HDR, 10‑bit video
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)
Memory 5 specs
Card slot
No
No
Internal
128GB 8GB RAM, 256GB 8GB RAM
256GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
UFS 3.1
UFS 4.1
RAM
—
16GB
Storage
—
512GB
Misc 4 specs
Colors
Gloss Black, Blue, White
Black, White, Silver Chrome, Green
Models
PEDM00
25010PN30G
Price
About 600 EUR
$ 693.75 / £ 1,295.00 / € 812.34
SAR EU
—
1.00 W/kg (head) 1.00 W/kg (body)
Network 7 specs
Technology
GSM / CDMA / HSPA / CDMA2000 / LTE / 5G
GSM / HSPA / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900
GSM 850 / 900 / 1800 / 1900
CDMA2000 1x
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
3G bands
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42, 66 - China
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, 2, 3, 5, 7, 8, 12, 20, 28, 38, 40, 41, 66, 77, 78, 79 - China
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
Platform 4 specs
OS
Android 11, upgradable to Android 13, ColorOS 13
Android 15, HyperOS 2
Chipset
Qualcomm SM8250-AC Snapdragon 870 5G (7 nm)
Snapdragon 8 Elite
CPU
Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585)
Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
GPU
Adreno 650
Adreno 830
Selfie Camera 3 specs
Single
32 MP, f/2.4, 26mm (wide), 1/2.8", 0.8µm
32 MP
Features
Panorama
HDR, panorama
Video
1080p@30fps
4K@30/60fps, 1080p@30/60fps, gyro-EIS
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)
Eu Label 4 specs
Energy
—
Class A
Battery
—
58:58h endurance, 1000 cycles
Free fall
—
Class C (90 falls)
Repairability
—
Class C
Our Tests 2 specs
Loudspeaker
—
-24.1 LUFS (Very good)
Battery
—
Active use score 16:13h
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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.