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Our Verdict
Analysis
Oppo Find X8 Ultra has the bigger display.
Overall Winner
Oppo Find X8 Ultra
Display Winner
Oppo Find X8 Ultra
Performance Winner
Tie
Camera Winner
Tie
Battery Winner
Tie
Value Winner
Tie
Specifications Comparison
| Feature | Oppo Find X8 Ultra | Xiaomi 15 Ultra |
|---|---|---|
| Display size (in) | 6.82 | 6.73 |
| Charging (W) | 100 | 90 |
| Thickness (mm) | 8.80 | 9.35 |
| Chipset | Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm) | Snapdragon 8 Elite |
| OS | Android 15, upgradable to Android 16, ColorOS 16 | Android 15, HyperOS 2 |
Pros & Cons
Oppo Find X8 Ultra
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 X8 Ultra
Xiaomi
Xiaomi 15 Ultra
Battery 3 specs
Type
Si/C Li-Ion 6100 mAh
Market-dependent versions:· Si/C Li-Ion 5410 mAh - Global· Si/C Li-Ion 6000 mAh - China
Charging
100W wired, 18W PD, 18W QC, 55W PPS
50W wireless
10W reverse wireless
90W wired, 80W wireless
Capacity
—
5410 mAh
Body 5 specs
Dimensions
163.1 x 76.8 x 8.8 mm (6.42 x 3.02 x 0.35 in)
161.3 x 75.3 x 9.35 mm
Weight
226 g (7.97 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 1.5m 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/6/7, 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
5.4, A2DP, LE, aptX HD, LHDC 5
6.0, A2DP, LE, aptX HD, aptX Adaptive, LHDC 5
Positioning
GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), GLONASS
GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5), GLONASS
NFC
Yes
Yes
Infrared port
Yes
Yes
Radio
No
No
USB
USB Type-C 3.2, OTG
USB Type-C 3.2 Gen 2, DisplayPort, OTG
5G
—
Yes
Display 5 specs
Type
LTPO AMOLED, 1B colors, 120Hz, 2160Hz PWM, Dolby Vision, HDR Vivid, HDR10+, 800 nits (typ), 1600 nits (HBM), 2500 nits (peak)
LTPO AMOLED
Size
6.82 inches, 113.0 cm2 (~90.2% screen-to-body ratio)
6.73 inches
Resolution
1440 x 3168 pixels (~510 ppi density)
1440 x 3200 pixels
Protection
Corning Gorilla Glass (unspecified version)
Xiaomi Shield Glass 2.0, Mohs level 6
Ultra HDR image support
—
Features 2 specs
Sensors
Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass
Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass, barometer
Emergency SOS via satellite (messages and calls) - available in Oppo Find X8 Ultra Satellite version
Two-way satellite communication (China model only)
Launch 2 specs
Announced
2025, April 10
2025, February 27
Status
Available. Released 2025, April 16
Available. Released 2025, February 27
Main Camera 3 specs
Quad
50 MP, f/1.8, 23mm (wide), 1.0"-type, 1.6µm, dual pixel PDAF, OIS
50 MP, f/2.1, 70mm (periscope telephoto), 1/1.56", 1.0µm, 3x optical zoom, multi-directional PDAF (10cm - ∞), OIS
50 MP, f/3.1, 135mm (periscope telephoto), 1/1/.95", 0.8µm, 6x optical zoom, dual pixel PDAF (35cm - ∞), OIS
50 MP, f/2.0, 15mm, 120˚ (ultrawide), 1/2.75", 0.64µm, PDAF
50 MP + 50 MP + 200 MP + 50 MP
Features
Laser AF, color spectrum sensor, Hasselblad Color Calibration, LED flash, HDR, panorama
Laser AF, color spectrum sensor, Leica lenses, Dual-LED flash, HDR, panorama, 67mm filter ring holder (optional)
Video
4K@30/60/120fps, 1080p@30/60/120/240fps; gyro-EIS; HDR, 10‑bit video, Dolby Vision
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
256GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
256GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
UFS 4.1
UFS 4.1
RAM
—
16GB
Storage
—
512GB
Misc 4 specs
Colors
Matte Black, Pure White, Shell Pink
Black, White, Silver Chrome, Green
Models
PKJ110, PKU110
25010PN30G
SAR EU
—
1.00 W/kg (head) 1.00 W/kg (body)
Price
—
$ 693.75 / £ 1,295.00 / € 812.34
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 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
1, 3, 4, 5, 7, 8, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42, 48, 66
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, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78, 79, 80, 81, 83, 84 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
Our Tests 4 specs
Performance
AnTuTu: 2710432 (v10)
GeekBench: 9503 (v6)
3DMark: 6644 (Wild Life Extreme)
—
Display
1157 nits max brightness (measured)
—
Loudspeaker
-26.3 LUFS (Good)
-24.1 LUFS (Very good)
Battery
Active use score 16:20h
Active use score 16:13h
Platform 4 specs
OS
Android 15, upgradable to Android 16, ColorOS 16
Android 15, HyperOS 2
Chipset
Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm)
Snapdragon 8 Elite
CPU
Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
GPU
Adreno 830
Adreno 830
Selfie Camera 3 specs
Single
32 MP, f/2.4, 21mm (wide), 1/2.74", 0.8µm, PDAF
32 MP
Features
Panorama, HDR
HDR, panorama
Video
4K@30/60fps, 1080p@30/60fps, gyro-EIS
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
Similar Comparisons
Common Questions
Which phone is the best in this comparison?
Oppo Find X8 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.