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Our Verdict
Analysis
OnePlus Open 2 has the bigger display.
Overall Winner
OnePlus Open 2
Display Winner
OnePlus Open 2
Performance Winner
Tie
Camera Winner
Tie
Battery Winner
Tie
Value Winner
Tie
Specifications Comparison
| Feature | OnePlus Open 2 | Xiaomi 15 Ultra |
|---|---|---|
| Display size (in) | 8.00 | 6.73 |
| Charging (W) | 80 | 90 |
| Selfie (MP) | 20.00 | 32.00 |
| Chipset | Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm) | Snapdragon 8 Elite |
| OS | Android 15, OxygenOS 15 | Android 15, HyperOS 2 |
Pros & Cons
OnePlus Open 2
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
OnePlus
OnePlus Open 2
Xiaomi
Xiaomi 15 Ultra
Battery 3 specs
Type
Si/C Li-Ion 5900 mAh
Market-dependent versions:· Si/C Li-Ion 5410 mAh - Global· Si/C Li-Ion 6000 mAh - China
Charging
80W wired
50W wireless
Reverse wired
90W wired, 80W wireless
Capacity
—
5410 mAh
Body 5 specs
Dimensions
Folded thickness: 10 mm
161.3 x 75.3 x 9.35 mm
Weight
-
226 g
SIM
Nano-SIM + Nano-SIM + eSIM (max 2 at a time)
· Nano-SIM + Nano-SIM· Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time)
IPX8 water resistant (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/6e/7, tri-band
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
6.0, A2DP, LE, aptX HD, aptX Adaptive, LHDC 5
Positioning
GPS (L1+L5), GLONASS, BDS, GALILEO (E1+E5a), QZSS
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 3.1, OTG
USB Type-C 3.2 Gen 2, DisplayPort, OTG
5G
—
Yes
Display 5 specs
Type
Foldable LTPO3 Flexi-fluid AMOLED, 1B colors, Dolby Vision, 120Hz
LTPO AMOLED
Size
8.0 inches, 205.9 cm2
6.73 inches
Resolution
2268 x 2440 pixels* (~416 ppi density)
1440 x 3200 pixels
Cover display:
LTPO3 Super Fluid OLED, 1B colors, Dolby Vision, 120Hz
6.4 inches, 1116 x 2484 pixels*, Ceramic Guard
* the final display resolutions are not specified
—
Protection
—
Xiaomi Shield Glass 2.0, Mohs level 6
Features 2 specs
Sensors
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass, barometer
—
Two-way satellite communication (China model only)
Launch 2 specs
Announced
Not announced yet
2025, February 27
Status
Cancelled
Available. Released 2025, February 27
Main Camera 4 specs
Triple
50 MP, (wide), PDAF, OIS
50 MP, (telephoto), PDAF, OIS, 3x optical zoom
50 MP, (ultrawide), PDAF
—
Features
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@30/60fps, 1080p@30/60/120/240/480fps gyro-EIS, HDR10+, 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)
Quad
—
50 MP + 50 MP + 200 MP + 50 MP
Memory 5 specs
Card slot
No
No
Internal
512GB 16GB RAM, 1TB 16GB RAM
256GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
UFS 4.0
UFS 4.1
RAM
—
16GB
Storage
—
512GB
Misc 4 specs
Colors
Black; other colors
Black, White, Silver Chrome, Green
Models
—
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
LTE
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
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, OxygenOS 15
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
20MP, f/2.2, 20mm (ultrawide), 1/4.0", 0.7µm
Cover camera:
32MP, f/2.4, 22mm (ultrawide), 1/3.14", 0.7µm
32 MP
Features
HDR
HDR, panorama
Video
4K@30fps, 1080p@30fps, gyro-EIS
4K@30/60fps, 1080p@30/60fps, gyro-EIS
Sound 3 specs
Loudspeaker
Yes, with stereo speakers (Dolby Atmos enhanced)
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
Similar Comparisons
Common Questions
Which phone is the best in this comparison?
OnePlus Open 2 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.