OnePlus 15 vs Xiaomi 18 Ultra
Quick Comparison
Xiaomi 18 Ultra has better RAM than OnePlus 15. In terms of display resolution, OnePlus 15 has better resolution of 2772 x 1272 than Xiaomi 18 Ultra which has resolution of 2608 x 1200. Xiaomi 18 Ultra has more internal memory than OnePlus 15
| Name | OnePlus 15 | Xiaomi 18 Ultra |
| RAM | 12 GB | 16 GB |
|---|---|---|
| Display | 6.78 in | 6.9 in |
| Internal Memory | 256 GB | 512 GB |
| Battery | 7300 mAh | 7000 mAh |
| Camera | 50 MP + 50 MP + 50 MP Triple | 200 MP + 200 MP + 50 MP Triple |
| Price | Rs. 72999 | Rs. 119990 |
Related Products
Detailed Comparison
Price And Launch
The launch Date of the first phone is October 27, 2025. The cost of OnePlus 15 is Rs. 72999. The launch Date of the second phone is expected to be February 28, 2027 (Expected). The cost of Xiaomi 18 Ultra is Rs. 119990.
Display comparison
Xiaomi 18 Ultra has larger screen size of 6.9 inches in comparison to OnePlus 15's 6.78 inch screen. Both the phones have LTPO AMOLED Screen Type. OnePlus's phone has display density of 450 PPI & Xiaomi's phone has only 416 PPI display density. In terms of screen to body ratio, OnePlus's phone has better screen to body ratio of ~ 95.5% than Xiaomi's phone ~ 92.3%. OnePlus 15 has 20/9 aspect ratio where as Xiaomi 18 Ultra has 20:9 aspect ratio.
Memory comparison
Xiaomi 18 Ultra's larger 16 GB RAM is better for playing games and all with respect to OnePlus 15's lower 12 GB RAM. Xiaomi 18 Ultra has more Internal Memory (512 GB) than OnePlus 15 (256 GB).
Camera comparison
Xiaomi 18 Ultra's 200 MP + 200 MP + 50 MP Triple Rear Camera outclasses OnePlus 15's 50 MP + 50 MP + 50 MP Triple Rear Camera in terms of resolution. Xiaomi 18 Ultra will be better choice if you're looking to click lot of selfies as it has better 50 MP Front Camera in comparison to OnePlus 15's 32 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 16 and the second one on 17 version.
Related Comparisons
Full Comparison
| Name | OnePlus 15 | Xiaomi 18 Ultra |
| General | ||
| Country of Origin | India | |
| Model | CPH2745, CPH2747, PLK110 | |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | eSIM+eSIM SIM |
| SAR | 1.17 W/kg (Head) 1 W/kg (Body) | |
| Device Type | Smartphone | Smartphone |
| Release Date | October 27, 2025 | February 28, 2027 (Expected) |
| In The Box | OnePlus 15, Charger, USB data cable, SIM Ejector Tool, Protective Case, Quick Guide | |
| Design | ||
| Dimensions | 76.7 x 161.4 x 8.1 mm | |
| Weight | 211 g | |
| Bezel less | Yes | |
| Qwerty | No | |
| Colors | Infinite Black, Ultra Violet, Sand Storm | |
| Display | ||
| Type | Color LTPO AMOLED Screen (1B Colors) | Color LTPO AMOLED Screen (68B) |
| Touch | Yes | Yes, 300 Hz Touch Sampling Rate |
| Size | 6.78 inches, 1272 x 2772 pixels, 165 Hz | 6.9 inches, 1200 x 2608 pixels, 120 Hz |
| Aspect Ratio | 20/9 | 20:9 |
| PPI | ~ 450 PPI | ~ 416 PPI |
| Screen to Body Ratio | ~ 95.5% | ~ 92.3% |
| Glass Type | Corning Gorilla Glass Victus 2 | |
| Brightness | 800 nits (typ), 1800 nits (HBM) | 5000 nits (peak) |
| Features | Sun Display, Reduce White Point, Eye Comfort Reminders, Motion Cues, Minimum 1nit, Eye Comfort for Gaming | 1132 nits max brightness (measured) |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Curved Display | Yes | |
| Memory | ||
| RAM | 12 GB | 16 GB |
| RAM Type | LPDDR5X Ultra | LPDDR5X |
| Storage | 256 GB | 512 GB |
| Storage Type | UFS 4.1 | UFS 4.1 |
| Card Slot | No | No |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| 5G Bands | 5G NR: n1/n2/n3/n5/n7/n8/n20/n26/n28/n38/n40/n41/n48/n66/n77/n78 | |
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By |
| Vo5G | Yes | Yes |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | Wi-Fi 7 (802.11be), Wi-Fi 6 (802.11ax), Wi-Fi 5 (802.11ac), Wi-Fi Display, WLAN Tethering, Wi-Fi 2.4GHz 2×2+Wi-Fi 5GHz 2×2 concurrent, Wi-Fi 5GHz 160MHz, 2×2 MIMO | WiFi 6 support |
| Bluetooth | Yes, v6.0, SBC, AAC, LDAC, aptX, aptX HD, aptX Adaptive, LHDC 5.0 | Yes, v6.0 |
| USB | Yes, USB-C v3.2 | Yes, USB-C v3.2 |
| USB Features | USB Tethering, USB on-the-go, USB Charging | USB Tethering, USB on-the-go, USB Charging |
| IR Blaster | Yes | Yes |
| Performance | ||
| AnTuTu Score | 3,677,810 (Total) (v11) 1,129,775 (CPU) 1,319,203 (GPU) 428,136 (Memory) 800,696 (UX) | |
| Geekbench Score | 2,960 (Single Core) | |
| Extra | ||
| GPS | Dual band: GPS(L1+L5), GLONASS(G1), BeiDou(B1I+B1C+B2a), Galileo(E1+E5a), QZSS(L1+L5), NavIC(L5) | Yes |
| Fingerprint Sensor | Yes, In Display | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Proximity, Ambient Light, Color Temperature, E-compass, Accelerometer, Gyroscope, In-display Ultrasonic Fingerprint Sensor, Hall Sensor, Laser Focusing Sensor, Spectral Sensor, Infrared Remote Control | Accelerometer, Proximity, Gyro, Compass, Barometer |
| 3.5mm Headphone Jack | No | No |
| NFC | Yes | Yes |
| AI Features | Plus Mind, Gemini AI | |
| Water Resistance | Yes, 2 m upto 30 min | Yes, 6 m upto 30 min |
| IP Rating | IP66/IP68/IP69K/IP69 | IP69 |
| Dust Resistant | Yes | Yes |
| Extra Features | OP Gaming Core, Touch Response Chip, G2 Wi-Fi Chip, Bypass Charging, 360° Cryo Velocity Cooling System | |
| Camera | ||
| Rear Camera | 50 MP ƒ/1.8 (Wide Angle) Sensor: Sony's IMX906, Lens Quantity: 6P, Optical Image Stabilization: Yes, Aperture: ƒ/1.8, Field of View: 84°, Autofocus: Yes 50 MP ƒ/2.8 (Telephoto) Sensor: S5KJN5 with 3.5X optical zoom, 7x optical quality zoom, Lens Quantity: 4P, Optical Image Stabilization: Yes, Aperture: ƒ/2.8, Field of View: 30°, Autofocus: Yes, Ultra Res (digital) Zoom: up to 120x zoom 50 MP ƒ/2 (Ultra Wide) Sensor: OV50D, Lens Quantity: 6P, Aperture: ƒ/2.0, Field of view: 116°, Autofocus: Yes | 200 MP (Wide Angle) 200 MP (Telephoto) 50 MP (Ultra Wide) |
| Camera Sensor | LYT-900 | |
| OIS | Yes | Yes |
| Auto Focus | Yes | Yes, Laser AF |
| Features | Photo, Video, Portrait, Night, Panorama, SLO-MO, Long Exposure, Dual-view video, TIME-LAPSE, HI-RES, Underwater, Master, TEXT SCANNER, DOC SCANNER, TILT-SHIFT, PRO VIDEO | Laser AF, color spectrum sensor, Leica lenses, HDR, panorama |
| Video Recording | 8K @ 30 fps UHD, 4K @ 120/60 fps UHD, 1080p | 8K @ 30 fps UHD, 1080p, 4K |
| Flash | Yes, LED | Yes, Dual LED |
| Front Camera | 32 MP ƒ/2.4 (Wide Angle) Sensor: Sony IMX709, Lens Quantity: 5P, Focal Length: 21 mm equivalent, Autofocus: Supported, Aperture: f/2.4 Punch Hole, Screen Flash | 50 MP ƒ/2.2 (Wide Angle) Punch Hole, Autofocus, Screen Flash |
| Front Video Recording | 4K @ 60 fps UHD, 1080p @ 60 fps FHD | 4K @ 30 fps UHD, 1080p @ 30 fps FHD |
| Technical | ||
| OS | Android v16 | Android v17 |
| Custom UI | OxygenOS 16 | Xiaomi HyperOS 4 |
| Chipset | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 8 Elite Gen 6 |
| CPU | 4.6 GHz, Octa Core Processor | Octa Core Processor |
| Core Details | 2x4.6 GHz Oryon V3 Phoenix L + 6x3.62 GHz Oryon V3 Phoenix M | |
| Fabrication Node | 3 nm | |
| GPU | Adreno 840 | |
| Java | No | No |
| Browser | Yes | Yes |
| Multimedia | ||
| Supports | JPEG, PNG, BMP, GIF, WEB, HEIF, HEIC, DNG | |
| Yes | Yes | |
| Music | MP3, AAC, AAC+, WMA, AMR-NB, AMR-WB, WAV, FLAC, APE, OGG, MID, M4A, IMY, AC3, EAC3, EAC3-JOC, AC4 | MP3, FLAC, APE, AAC, OGG, WAV, WMA, AMR, AWB |
| Video | Dolby Vision, HDR10, HDR10+, +HLG, HDRViVid, MKV, MOV, MP4, H.265 (HEVC), AVI, WMV, TS, 3GP, ASF, FLV, WEB | MP4, MKV, WEBM, 3GP, TS, HDR10+, Supports HDR Display When Playing HDR10+, Dolby Vision, HDR Vivid Video Content |
| FM Radio | No | No |
| Speaker Type | Stereo | |
| Audio Features | 4-Mic Array, 24-bit/192kHz Hi-Res & Hi-Res Wireless Audio. Qualcomm XPAN (24-bit/96kHz Audio), Dolby Atmos | |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 7300 mAh, Si/C | 7000 mAh |
| Fast Charging | Yes, 120W SUPERVOOC Charging | Yes, 100W |
| Wireless Charging | Yes, 50W AIRVOOC | Yes, 50W |
| Reverse Charging | Yes, 10W | Yes, 22.5W |
| Reverse Wireless Charging | Yes, 5W | Yes, 10W |