Xiaomi 15 Ultra has better RAM than Xiaomi 18 Pro Max. In terms of display resolution, Xiaomi 15 Ultra has better resolution of 3200 x 1440 than Xiaomi 18 Pro Max which has resolution of 2624 x 1208. Xiaomi 15 Ultra has more internal memory than Xiaomi 18 Pro Max
| Name | Xiaomi 18 Pro Max | Xiaomi 15 Ultra |
| RAM | 12 GB | 16 GB |
|---|---|---|
| Display | 6.9 in | 6.73 in |
| Internal Memory | 256 GB | 512 GB |
| Battery | 8500 mAh | 5410 mAh |
| Camera | 200 MP + 200 MP + 50 MP Triple | 50 MP Quad |
| Price | Rs. 99999 | Rs. 89990 |
The launch Date of the first phone is September 23, 2026. The Expected cost of Xiaomi 18 Pro Max is Rs. 99999. The launch Date of the second phone is March 11, 2025. The cost of Xiaomi 15 Ultra is Rs. 89990.
Xiaomi 18 Pro Max has larger screen size of 6.9 inches in comparison to Xiaomi 15 Ultra's 6.73 inch screen. There is LTPO AMOLED Screen Type in both the phones. Xiaomi 15 Ultra has display density of 522 PPI & Xiaomi 18 Pro Max has only 418 PPI display density. In terms of screen to body ratio, Xiaomi 18 Pro Max has better screen to body ratio of ~ 91.6% than Xiaomi 15 Ultra's ~ 89.7%. Both phones have same aspect ratio of 20:9.
Xiaomi 15 Ultra's larger 16 GB RAM is better for playing games and all with respect to Xiaomi 18 Pro Max's lower 12 GB RAM. Xiaomi 15 Ultra has more Internal Memory (512 GB) than Xiaomi 18 Pro Max (256 GB).
Xiaomi 18 Pro Max's 200 MP + 200 MP + 50 MP Triple Rear Camera outshines Xiaomi 15 Ultra's 50 MP Quad Rear Camera in terms of resolution. Xiaomi 18 Pro Max will be better choice if you're looking to click lot of selfies as it has better 50 MP Front Camera in comparison to Xiaomi 15 Ultra's 32 MP Front Camera.
Both the phones has Android Operating System but the first one runs on version 17 and the second one on 15 version.
| Name | Xiaomi 18 Pro Max | Xiaomi 15 Ultra |
| General | ||
| Country of Origin | India | |
| Model | 18 pro max | Mi 15 Ultra 25010PN30G |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | September 23, 2026 | March 11, 2025 |
| In The Box | Mobile Phone, Adapter, USB Type-C Cable, SIM Eject Tool, Protective Case, Safety Information, Quick Start Guide and Warranty Card, Desiccant | |
| Design | ||
| Dimensions | 77.6 x 163.4 x 8.4 mm | 75.3 x 161.3 x 9.48 mm |
| Weight | 235 g | 229 g |
| Bezel less | Yes | |
| Qwerty | No | |
| Colors | Black, White, Pink, Red | Silver Chrome |
| Display | ||
| Type | Color LTPO AMOLED Screen (68 B) | Color LTPO AMOLED Screen (68B) |
| Touch | Yes | Yes, 300 Hz Touch Sampling Rate |
| Size | 6.9 inches, 1208 x 2624 pixels, 120 Hz | 6.73 inches, 1440 x 3200 pixels, 120 Hz |
| Aspect Ratio | 20:9 | 20:9 |
| PPI | ~ 418 PPI | ~ 522 PPI |
| Screen to Body Ratio | ~ 91.6% | ~ 89.7% |
| Glass Type | Xiaomi Dragon Crystal Glass 3 | Xiaomi Shield Glass 2.0 |
| Brightness | 4000 nits (peak) | 3200 nits (peak) |
| HDR Support | Yes, HDR10+, Dolby Vision | |
| Adaptive Refresh Rate | Yes, LTPO | Yes, LTPO |
| Display Dimming | 2160Hz PWM, 120Hz | |
| Features | DCI-P3, Dolby Vision, HDR10+, 1920Hz PWM Dimming / DC Dimming, Original color PRO, Pro HDR, Wet Touch Technology, HDR10+, Dolby Vision, TÜV Rheinland Low Blue Light (Hardware Solution) Certified, TÜV Rheinland Flicker Free Certified, TÜV Rheinland Circadian Friendly Certified, Always-active Display | |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Curved Display | Yes | |
| Dual Display | 2.9 inches, LTPO AMOLED, 596 x 976 pixels, 120Hz, Dolby Vision, HDR Vivid, HDR10+, BT.2020, 4000 nits (peak) | |
| Memory | ||
| RAM | 12 GB | 16 GB |
| RAM Type | LPDDR5X | |
| Storage | 256 GB | 512 GB |
| Storage Type | UFS 4.1 | UFS 4.1 |
| Card Slot | No | |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| 5G Bands | SA: n1/2/3/5/7/8/20/28/38/40/41/48/66*/77/78/79, NSA: n1/3/5/7/8/20/28/38/40/41/66*/77/78/79 | SA:n1/2/3/5/7/8/12/20/25/26/28A/28B/38/40/41/48/66/75/77/78/79/71, NSA: n1/3/5/7/8/20/28/38/40/41/66/75/77/78/79/71 |
| 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 | WiFi 6 support |
| Bluetooth | Yes, v6.0, A2DP, LE, aptX HD | Yes, v6.0, A2DP, LE, aptX HD |
| 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 | 2,477,963 (Total) (v10) 542,576 (CPU) 1,036,853 (GPU) 474,641 (Memory) 423,893 (UX) | |
| Geekbench Score | 8,871 (Multi Core) (v6) 2,960 (Single Core) 18,683 (OpenCL) 25,095 (Vulkan) | |
| 3DMark Score | 21,097 (Wild Life) (125 FPS) 6,134 (Wild Life Extreme) (35 FPS) | |
| Camera Score | 153 (DxOMark) | |
| Speaker Score | 84 (Very Good) | |
| Battery Test Result | 15.98 hours | |
| Extra | ||
| GPS | with GPS, Galileo, GLONASS, Beidou, NAVIC | GPS: L1+L5, Galileo: E1+E5a, GLONASS: G1, Beidou, QZSS: L1 + L5, NavIC: L5, A-GPS Supplementary Positioning, Electronic Compass, Wireless Network, Data Network, SAP |
| Fingerprint Sensor | Yes, In Display | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Proximity, Gyro, Compass, Barometer | Proximity Sensor, Ambient Light Sensor, Accelerometer, Gyroscope, Electronic Compass, IR Blaster, Laser Autofocus, Barometer, Flicker Sensor, X-Axis Linear Vibration Motor |
| 3.5mm Headphone Jack | No | No |
| NFC | Yes | Yes |
| Water Resistance | Yes, 6 m upto 30 min | Yes, 1.5 m upto 30 min |
| IP Rating | IP68 | IP68 |
| Dust Resistant | Yes | Yes |
| Extra Features | Xiaomi 3D Dual-Channel IceLoop system, Aerospace-grade Glass Fiber | |
| Camera | ||
| Rear Camera | 200 MP ƒ/1.7 (Wide Angle) 23mm (wide), 1/1.28", 0.61µm, dual pixel PDAF, OIS 200 MP ƒ/2.4 (Periscope Telephoto) 1/1.56", PDAF (10cm - ∞), OIS, 3.2x optical zoom 50 MP ƒ/2.4 (Ultra Wide) 17mm, 102˚ (ultrawide), 1/2.88", 0.61µm, PDAF | 50 MP ƒ/1.6 (Wide Angle) 23mm (Wide), 1.0"-Type, 1.6µm, Dual Pixel PDAF, OIS 50 MP ƒ/1.8 (Telephoto) 70mm (Telephoto), 1/2.51", 0.7µm, Dual Pixel PDAF (10cm - ∞), OIS, 3x Optical Zoom 200 MP ƒ/2.6 (Periscope Telephoto) 100mm (Periscope Telephoto), 1/1.4", 0.56µm, Multi-Directional PDAF, OIS, 4.3x Optical Zoom 50 MP ƒ/2.2 (Ultra Wide) 14mm, 115˚ (Ultrawide), 1/2.76", 0.64µm, Dual Pixel PDAF |
| Camera Sensor | LYT-900 | |
| OIS | Yes | Yes |
| Auto Focus | Yes | Yes, Laser AF |
| Features | Laser Af, Color Spectrum Sensor, Leica Lens, Dual-tone , Hdr, Panorama | Leica Summilux Optical Lens, Laser AF, Color Spectrum Sensor, Leica Lenses, Two Leica Photographic Styles (Leica Authentic Look, Leica Vibrant Look), Leica Filters, Leica Classic Shutter Sound, Leica Watermark, Xiaomi ProFocus (Motion Tracking Focus, Eye Tracking Focus and Motion Capture), Lightning Burst, Digital Zoom Up to 120x, HDR, Dynamic Shot, Portrait Mode, Master-Lens System (23mm-135mm), 50MP Mode (Wide/Ultra Wide/Telephoto), 200MP Mode (Periscope), Super Macro, Panorama, Long Exposure, Documents, Fastshot Mode, Supermoon, Pro Mode, Image Formats Captured: DNG, HEIF, JPEG, RAW Mode, UltraRAW: 16-Bit, Rear Camera Video Features, Movie Mode, ShootSteady, Slow Motion, Dual Video, Time-Lapse, Ultra Night Video, Video Pro Mode, Video Log Format |
| Video Recording | 8K @ 30 fps UHD, 1080p @ 120 fps FHD, 720p | 8K @ 30 fps UHD, 1080p @ 30/60 fps FHD, 4K @ 120/30/60 fps UHD |
| Flash | Yes, Dual LED | Yes, Dual LED |
| Front Camera | 50 MP ƒ/2.2 (Wide Angle) Punch Hole, Autofocus, Screen Flash | 32 MP ƒ/2 (Wide Angle) 21mm (Wide), 1/3.14", 0.7µm Punch Hole, Autofocus, Screen Flash |
| Front Video Recording | 4K @ 60 fps UHD, 1080p @ 60 fps FHD | 4K @ 30/60 fps UHD, 1080p @ 30/60 fps FHD |
| Front Camera Features | HDR, panorama | HDR, Portrait Mode, Palm Shutter, Voice Shutter, Selfie Timer, Screen Flashlight, Front Camera Video Features, Dolby Vision Video Recording, Video Teleprompter, Slow Motion Selfie, Time-Lapse Selfie |
| Technical | ||
| OS | Android v17 | Android v15 |
| Custom UI | HyperOS 4 | Xiaomi HyperOS 2 |
| Chipset | Qualcomm Snapdragon 8 Elite Extreme Gen 6 | Qualcomm Snapdragon 8 Elite |
| CPU | 5 GHz, Octa Core Processor | 4.32 GHz, Octa Core Processor |
| Core Details | 2x Prime Core@4.32 GHz & 6x Performance Core@3.53 GHz & Qualcomm AI engine | |
| Fabrication Node | 2nm | 3 nm |
| GPU | Adreno | Adreno 830 |
| Java | No | No |
| Browser | Yes | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | MP3, FLAC, APE, AAC, OGG, WAV, WMA, AMR, AWB | MP3, FLAC, APE, AAC, OGG, WAV, WMA, AMR, AWB |
| Video | MP4, MKV, AVI, WMV, WEBM, 3GP, ASF playback | 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 | 24-bit/192kHz Hi-Res & Hi-Res wireless audio Snapdragon sound | 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 | 8500 mAh, Si/C Li-ion Battery | 5410 mAh, Li-ion Battery |
| Fast Charging | Yes, 100W Fast Charging | Yes, 90W HyperCharge |
| Wireless Charging | Yes, 50W | Yes, 80W HyperCharge |
| Reverse Charging | Yes | Yes |
| Reverse Wireless Charging | Yes, 27W | Yes, 10W |