Xiaomi Mi 11 Ultra vs Xiaomi Xiaomi 15 Ultra
Better figure, where one is clearly better
| XiaomiMi 11 Ultra | XiaomiXiaomi 15 Ultra | |
|---|---|---|
| Overview | ||
| Released | April 2021 | February 2025 |
| Display | ||
| Screen size | 6.81″ | 6.73″ |
| Resolution | 3200 × 1440 | 3200 × 1440 |
| Sharpness | 515 pixels per inch | 521 pixels per inch (better) |
| Panel | OLED | LTPO OLED |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1,700 nits | 3,200 nits (better) |
| Display type | Quad-curved AMOLED with Gorilla Glass Victus; rear 1.1-inch AMOLED display (Tech Advisor). | WQHD+ LTPO AMOLED with 1–120 Hz adaptive refresh, 68 billion colours and DCI-P3; All Around Liquid Display glass curves around the edges |
| Pixel density | – | 522 ppi |
| Brightness detail | – | 3,200 nits multi-scenario peak brightness |
| Always-on display | – | Always-active Display with 2–80 nits adaptive brightness and refresh as low as 1 Hz |
| Screen protection | – | Xiaomi Shield Glass 2.0; camera surround protected by Corning Gorilla Glass 7i |
| Display features | 900 nits high-brightness mode, 480 Hz touch sampling, 10-bit colour, Dolby Vision and HDR10+. | DC dimming at high brightness, 1,920 Hz PWM dimming at low brightness, 300 Hz touch sampling, Original Colour PRO, Pro HDR, wet touch, HDR10+, Dolby Vision and TÜV low-blue-light, flicker-free and circadian-friendly certifications |
| Performance | ||
| Chip | Qualcomm Snapdragon 888 | Qualcomm Snapdragon 8 Elite |
| Memory | 12 GB | 16 GB (better) |
| Storage | 256 GB | 512 GB, 1 TB (better) |
| CPU | Snapdragon 888, 5 nm process and Kryo 680 up to 2.84 GHz. | Second-generation TSMC 3 nm Qualcomm Oryon CPU; two prime cores up to 4.32 GHz and six performance cores up to 3.53 GHz |
| GPU | Adreno 660. | Qualcomm Adreno GPU; maker gives no numeric suffix |
| AI engine | – | Qualcomm AI engine; maker states 80 TOPS computing power |
| Storage type | LPDDR5 and UFS 3.1; no microSD expansion (TechRadar). | LPDDR5X RAM at 8,533 Mbps and UFS 4.1 storage; UK 16 GB/512 GB or 16 GB/1 TB |
| Cooling | – | Xiaomi 3D Dual-Channel IceLoop system with 5,100 mm² overall loop heat-pipe area |
| Cameras | ||
| Main camera | 50 MP | 50 MP |
| Ultra wide camera | 48 MP | 50 MP |
| Telephoto camera | 48 MP | 200 MP |
| Optical zoom | 5× (better) | 4.3× |
| Front camera | 20 MP | 32 MP (better) |
| Main camera | f/1.95, 1/1.12-inch Samsung GN2 sensor, optical stabilisation and four-pixel binning to 2.8 µm; Dual Pixel Pro and laser focus. | Leica Summilux, Sony LYT-900, 50 MP, f/1.63 fixed aperture, 1-inch sensor, 23 mm equivalent focal length, eight-element lens, 4-axis OIS and 4-in-1 binning to 3.2 µm pixels |
| Ultra wide camera | f/2.2, 128° field of view and phase-detection autofocus; maker overview lists a 1/2-inch sensor and 12 mm equivalent focal length. | Leica 50 MP, f/2.2, 14 mm equivalent focal length, 115° field of view, six-element lens, 1.28 µm binned pixels and macro focusing from 5 cm |
| Telephoto camera | Periscope with OIS and 5× optical zoom; f/4.1 aperture (Tech Advisor). 10× hybrid and 120× digital zoom are separate. Maker overview lists a 1/2-inch sensor and 120 mm equivalent focal length. | Leica 200 MP periscope, f/2.6, OIS, 100 mm equivalent focal length, 1/1.4-inch sensor and 2.24 µm binned pixels; second floating telephoto is 50 MP, f/1.8, OIS, 70 mm equivalent focal length, 1.4 µm binned pixels and macro focusing from 10 cm |
| Front camera | – | OmniVision OV32B, 32 MP, f/2.0, 21 mm equivalent focal length and 90° field of view |
| Zoom | – | 3× floating telephoto and 4.3× periscope optical ratios identified by Tech Advisor and TechRadar; maker lists 23/70/100 mm focal lengths and up to 120× digital zoom |
| Video recording | All three rear cameras support 8K at 24 fps and 4K at 30/60 fps. | 8K at 30 fps; 4K at 30/60/120 fps; Full HD at 30/60 fps; HD at 30 fps; Dolby Vision and 4K60 10-bit log across focal lengths; 4K120 on main/periscope; slow motion HD or Full HD at 120/240/480/960/1,920 fps |
| Front video | 1080p at 30/60 fps; f/2.2 selfie aperture (Tech Advisor). | 4K or Full HD at 30/60 fps, HD at 30 fps; Dolby Vision video, teleprompter, slow motion selfie and time-lapse selfie |
| Camera features | Rear display can frame main-camera selfies; night and movie-effect modes. Reviewers disagree about the ultra-wide results. | 13-channel multispectral sensor, Leica Authentic and Vibrant styles, Leica filters, ProFocus motion and eye tracking, Lightning Burst, Dynamic Shots, master portraits from 23–135 mm, 50/200 MP modes, macro, Fastshot, Supermoon, RAW/DNG/HEIF/JPEG, 16-bit UltraRAW, Movie mode, ShootSteady, Dual Video and Ultra Night Video; Photography Kit Legend Edition sold separately |
| Battery and charging | ||
| Battery | 5,000 mAh | 5,410 mAh (better) |
| Wired charging | Up to 67 W | Up to 90 W (better) |
| Wireless charging | Up to 67 W | Up to 80 W (better) |
| Battery life detail | 5,000 mAh typical, 4,900 mAh minimum. | 5,410 mAh typical UK Xiaomi Surge Battery; maker laboratory claim of up to 25 hours video playback; Surge P3 charging and G2 battery-management chips |
| Wired charging | UK 67 W charger included; Tech Advisor's Indian unit information instead describes a 55 W bundled charger. | 90 W HyperCharge; QC3+, QC3.0, QC2.0, PD3.0, PD2.0 and MI FC 2.0; separate Xiaomi 90 W adaptor recommended |
| Wireless charging | 67 W wireless and 10 W reverse wireless charging; Tech Advisor did not test the maximum wireless rate. | 80 W wireless HyperCharge; compatible wireless charger sold separately |
| Design | ||
| Type | Standard | Standard |
| Weight | 234 g | 226 g (better) |
| Thickness | 8.38 mm (better) | 9.35 mm |
| Height × width | 164.3 × 74.6 mm | 161.3 × 75.3 mm |
| Water and dust resistance | IP68 | IP68 |
| Materials | Ceramic back and Gorilla Glass Victus over the display; maker ceramic specification controls TechRadar's rear-glass description. | 6M42 high-strength aluminium frame; maker confirms Silver Chrome glass fibre and PU leather; Tech Advisor identifies glass-fibre backs on Black/White |
| Colours | Ceramic Black and Ceramic White. | Black, White and Silver Chrome; main dimensions and weight are for Black/White, while Silver Chrome is 9.48 mm thick and weighs 229 g |
| Water resistance detail | IP68 tested at 1.5 metres for up to 30 minutes under laboratory conditions. | IP68; maker test in static freshwater at 1.5 m for 30 minutes with temperature difference no greater than 5 K; resistance can decline with wear; separate photography kit system rated IP54 |
| Biometrics | In-display fingerprint sensor (Tech Advisor). | Ultrasonic in-display fingerprint reader and AI Face Unlock |
| Sensors | – | Proximity, ambient light, accelerometer, gyroscope, electronic compass, IR blaster, laser autofocus, barometer and flicker sensor; X-axis linear vibration motor |
| Speakers | Stereo speakers tuned with Harman Kardon. | Stereo speakers, Dolby Atmos, Hi-Res Audio and Hi-Res Wireless Audio |
| Microphones | – | Four-microphone array with directional/omnidirectional recording and Audio Zoom |
| Software | ||
| Operating system | Android | Android |
| Software at launch | MIUI 12 based on Android 11; maker page notes the MIUI 12.5 update. | Xiaomi HyperOS 2; Android 15 confirmed by Tech Advisor and TechRadar |
| Software updates | – | Four Android version upgrades and six years of security updates reported at launch by Tech Advisor and TechRadar |
| AI features | – | Regional HyperAI writing, speech recognition, interpreter, search, dynamic wallpapers, creativity and image-editing tools, Google Gemini and Circle to Search; applicable features require internet access and updates |
| In the box | UK charger, cable, USB-C to 3.5 mm adapter, case, SIM tool and documents. The UK maker's 12/256 configuration is used; other regional memory options are not inferred. Contemporary Gizmochina actual first-sale coverage on 2 April 2021 supports the Chinese sale month, with later UK availability distinguished. | Phone, USB-C cable, SIM tool, protective case, safety information, quick-start guide, warranty card and desiccant; standard UK box excludes adaptor |
| Connectivity | ||
| Mobile network | – | 5G SA/NSA, LTE, UMTS and GSM; 4×4 MIMO; Xiaomi Surge T1/T1S tuners and antenna array |
| SIM | Dual SIM; network support depends on regional bands and operators. | Dual nano-SIM, nano-SIM plus eSIM or dual eSIM; eSIM depends on region and carrier |
| Wi-Fi | Wi-Fi 6; Wi-Fi 6E availability depends on regions and an OTA update, as qualified by the maker. | Wi-Fi 7/6E/6 capability depends on region and network; dual-band simultaneous operation, 2×2 MIMO, 8×8 sounding for MU-MIMO, Wi-Fi Direct and Miracast |
| Bluetooth | Bluetooth 5.2. | Bluetooth 6.0, Dual-Bluetooth; SBC, AAC, aptX, aptX HD, aptX Adaptive, LDAC, LHDC 5.0 and LC3 |
| NFC | NFC. | Supported |
| USB | USB-C; no 3.5 mm socket (TechRadar). | USB-C, USB 3.2 Gen 2 |
| Positioning | – | GPS L1/L5, Galileo E1/E5a, GLONASS G1, BeiDou, QZSS L1/L5 and NavIC L5; assisted positioning |
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