Both Xiaomi 15 Ultra and Vivo X300 Ultra comes with same RAM. In terms of display resolution, Xiaomi 15 Ultra has better resolution of 3200 x 1440 than Vivo X300 Ultra which has resolution of 3168 x 1440. Both have the same amount of internal memory.
| Name | Xiaomi 15 Ultra | Vivo X300 Ultra |
| RAM | 16 GB | 16 GB |
|---|---|---|
| Display | 6.73 in | 6.82 in |
| Internal Memory | 512 GB | 512 GB |
| Battery | 5410 mAh | 6600 mAh |
| Camera | 50 MP Quad | 200 MP + 200 MP + 50 MP Triple |
| Price | Rs. 89990 | Rs. 159999 |
The launch Date of the first phone is March 11, 2025. The cost of Xiaomi 15 Ultra is Rs. 89990. The launch Date of the second phone is May 06, 2026. The cost of Vivo X300 Ultra is Rs. 159999.
Xiaomi 15 Ultra has screen size of 6.73 inches which falls short to Vivo X300 Ultra's 6.82 inch screen. Xiaomi 15 Ultra has LTPO AMOLED Screen type where as Vivo X300 Ultra has AMOLED Screen type. Xiaomi's phone has display density of 522 PPI & Vivo's phone has only 510 PPI display density. In terms of screen to body ratio, Vivo's phone has better screen to body ratio of ~ 90.3% than Xiaomi's phone ~ 89.7%. Both mobiles have same aspect ratio of 20:9.
Both mobiles come with 16 GB RAM and both have same Internal Memory of 512 GB.
Vivo X300 Ultra's 200 MP + 200 MP + 50 MP Triple Rear Camera outclasses Xiaomi 15 Ultra's 50 MP Quad Rear Camera in terms of resolution. Vivo X300 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 Xiaomi 15 Ultra's 32 MP Front Camera.
Both the phones has Android Operating System but the first one runs on version 15 and the second one on 16 version.
| Name | Xiaomi 15 Ultra | Vivo X300 Ultra |
| General | ||
| Country of Origin | India | |
| Model | Mi 15 Ultra 25010PN30G | V2547A, V2547DA, V2536A, V2562 |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| SAR | 1.1 W/kg (Head) 1.12 W/kg (Body) | |
| Device Type | Smartphone | Smartphone |
| OS Updates | 5 years | |
| Security Updates | 7 years | |
| Release Date | March 11, 2025 | May 06, 2026 |
| In The Box | Mobile Phone, Adapter, USB Type-C Cable, SIM Eject Tool, Protective Case, Safety Information, Quick Start Guide and Warranty Card, Desiccant | X300 Ultra, Quick Start Guide, Eject Tool, Phone Case, Protective Film (applied), Warranty Card, USB Power Adapter |
| Design | ||
| Dimensions | 75.3 x 161.3 x 9.48 mm | 76.81 x 162.98 x 8.19 mm |
| Weight | 229 g | 232 g |
| Bezel less | Yes | Yes |
| Qwerty | No | |
| Colors | Silver Chrome | Victory Green, Eclipse Black |
| Display | ||
| Type | Color LTPO AMOLED Screen (68B) | Color AMOLED Screen (1.07B Colors) |
| Touch | Yes, 300 Hz Touch Sampling Rate | Yes |
| Size | 6.73 inches, 1440 x 3200 pixels, 120 Hz | 6.82 inches, 1440 x 3168 pixels, 144 Hz |
| Aspect Ratio | 20:9 | 20:9 |
| PPI | ~ 522 PPI | ~ 510 PPI |
| Screen to Body Ratio | ~ 89.7% | ~ 90.3% |
| Glass Type | Xiaomi Shield Glass 2.0 | Armor glass |
| Brightness | 3200 nits (peak) | 4500 nits |
| HDR Support | Yes, HDR10+, Dolby Vision | Yes |
| Adaptive Refresh Rate | Yes, LTPO | Yes |
| Display Dimming | 2160Hz PWM | |
| Color Gamut | 100% DCI-P3 | |
| 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 | Dolby Vision, HDR10+, HDR Vivid, 2K ZEISS Master Color Display, Ultra XDR |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Curved Display | Yes | No |
| Memory | ||
| RAM | 16 GB | 16 GB |
| RAM Type | LPDDR5X | LPDDR5X Ultra Pro |
| Expandable RAM | Upto 16 GB Extra Virtual RAM | |
| Storage | 512 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 | 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 | n1/n2/n3/n5/n7/n8/n12/n20/n25/n28/n38/n40/n41/n66/n71/n75/n77/n78/n79 |
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By |
| Vo5G | Yes | |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | WiFi 6 support | 2.4G;5G;6G |
| Bluetooth | Yes, v6.0, A2DP, LE, aptX HD | 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 | 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 | 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 | GPS, BeiDou, GLONASS, Galileo, QZSS, NavIC, GNSS feature - AGPS |
| Fingerprint Sensor | Yes, In Display | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Proximity Sensor, Ambient Light Sensor, Accelerometer, Gyroscope, Electronic Compass, IR Blaster, Laser Autofocus, Barometer, Flicker Sensor, X-Axis Linear Vibration Motor | Accelerometer, Color Temperature Sensor, Ambient Light Sensor, Proximity Sensor, E-compass, Gyroscope, Laser Focusing Sensor, Hall Sensor, Infrared Blaster, Flicker Sensor Linear Motor |
| 3.5mm Headphone Jack | No | No |
| NFC | Yes | Yes |
| Cooling System | 5800 mm² Ultra Large VC Cooling Area | |
| Water Resistance | Yes, 1.5 m upto 30 min | Yes, 1.5 m upto 30 min |
| IP Rating | IP68 | IP69 & IP68 |
| Dust Resistant | Yes | Yes |
| Extra Features | Xiaomi 3D Dual-Channel IceLoop system, Aerospace-grade Glass Fiber | Pro Imaging Chip VS1+, 5800 mm² Ultra Large VC Cooling Area, Live Connectivity Engine, vivo Office Kit, 5G + 5G Dual SIM Dual Standby, BlueVolt Battery Technology, Shake to Share |
| Camera | ||
| Rear Camera | 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 | 200 MP ƒ/1.85 (Wide Angle) 35mm ZEISS Documentry Camera, 1/1.12", 0.7µm, PDAF, gimbal OIS 200 MP ƒ/2.67 (Telephoto) 85mm ZEISS Gimbal-Like Stabilization APO Telephoto Camera, Ultra-Sensing Sensor HPO | 200 MP | CIPA 7.0 | 3° OIS | 60 fps AF Tracking, 1/1.4", 0.56µm, multi-directional PDAF, OIS, 3.7x optical zoom, macro 3.4:1, 50 MP ƒ/2 (Ultra Wide) Sony LYTIA 818 Sensor, CIPA 6.0, IS, 1/1.28", 1.22µm, dual pixel PDAF, OIS, 14mm ZEISS |
| Camera Sensor | LYT-900 | Sony LYTIA 901 Sensor CIPA 6.5 (200MP Wide Angle) + Sony LYT818 Sensor CIPA 6.0(50MP UltraWide) |
| OIS | Yes | Yes |
| Auto Focus | Yes, Laser AF | Yes |
| Features | 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 | ZEISS Cinematics, ZEISS Documentry Camera, ZEISS Master Lenses Collection, Snapshot, Landscape & Night, Portrait, Photo, Video, Portrait Video, Pano, Ultra HD Document, Slo-mo, Stage, Time-lapse, Pro, Underwater Photography, Spatial Camera, Food, Scan, Street Photography, Dolby Vision |
| Video Recording | 8K @ 30 fps UHD, 1080p @ 30/60 fps FHD, 4K @ 120/30/60 fps UHD | 4K @ 120 fps UHD, 1080p |
| Flash | Yes, Dual LED | Yes, LED |
| Front Camera | 32 MP ƒ/2 (Wide Angle) 21mm (Wide), 1/3.14", 0.7µm Punch Hole, Autofocus, Screen Flash | 50 MP ƒ/2.45 (Wide Angle) Punch Hole, Autofocus, Screen Flash |
| Front Video Recording | 4K @ 30/60 fps UHD, 1080p @ 30/60 fps FHD | 4K @ 60 fps UHD, 1080p @ 60 fps FHD |
| Technical | ||
| OS | Android v15 | Android v16 |
| Custom UI | Xiaomi HyperOS 2 | OriginOS 6 |
| Chipset | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite Gen 5 |
| CPU | 4.32 GHz, Octa Core Processor | 4.6 GHz, Octa Core Processor |
| Core Details | 2x Prime Core@4.32 GHz & 6x Performance Core@3.53 GHz & Qualcomm AI engine | 2x4.6 GHz Oryon V3 Phoenix L + 6x3.62 GHz Oryon V3 Phoenix M |
| Fabrication Node | 3 nm | |
| GPU | Adreno 830 | Adreno 840 |
| NPU | Qualcomm Hexagon NPU | |
| Java | No | No |
| Browser | Yes | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | MP3, FLAC, APE, AAC, OGG, WAV, WMA, AMR, AWB | AAC, WAV, MP3, MIDI, VORBIS, APE, FLAC |
| Video | MP4, MKV, WEBM, 3GP, TS, HDR10+, Supports HDR Display When Playing HDR10+, Dolby Vision, HDR Vivid Video Content | MP4; 3GP; AVI; FLV; MKV; WEBM; TS; ASF |
| FM Radio | No | No |
| Speaker Type | Stereo | Dual 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 | 5410 mAh, Li-ion Battery | 6600 mAh, Li-ion Battery |
| Fast Charging | Yes, 90W HyperCharge | Yes, 100W FlashCharge. |
| Wireless Charging | Yes, 80W HyperCharge | Yes, 40W Wireless FlashCharge |
| Reverse Charging | Yes | Yes |
| Reverse Wireless Charging | Yes, 10W | Yes |
| Bypass Charging | Yes | |
| Video Playback Time | 38 hours | |