Both Xiaomi 15 and Vivo X300 (12GB RAM + 512GB) comes with same RAM. In terms of display resolution, Vivo X300 (12GB RAM + 512GB) has better resolution of 2640 x 1216 than Xiaomi 15 which has resolution of 2670 x 1200. Both have the same amount of internal memory.
| Name | Xiaomi 15 | Vivo X300 (12GB RAM + 512GB) |
| RAM | 12 GB | 12 GB |
|---|---|---|
| Display | 6.36 in | 6.31 in |
| Internal Memory | 512 GB | 512 GB |
| Battery | 5240 mAh | 6040 mAh |
| Camera | 50 MP + 50 MP + 50 MP Triple | 200 MP + 50 MP + 50 MP Triple |
| Price | Rs. 67999 | Rs. 81999 |
The launch Date of the first phone is March 11, 2025. The cost of Xiaomi 15 is Rs. 67999. The launch Date of the second phone is December 02, 2025. The cost of Vivo X300 (12GB RAM + 512GB) is Rs. 81999.
Vivo X300 (12GB RAM + 512GB) has screen size of 6.31 inches which falls short to Xiaomi 15's 6.36 inch screen. Xiaomi 15 has OLED Screen type where as Vivo X300 (12GB RAM + 512GB) has AMOLED Screen type. Both have same 460 PPI. In terms of screen to body ratio, Xiaomi's phone has better screen to body ratio of ~ 90% than Vivo's phone ~ 86.7%. Xiaomi 15 has 20.5:9 aspect ratio where as Vivo X300 (12GB RAM + 512GB) has 20:9 aspect ratio.
Both mobiles come with 12 GB RAM and both have same Internal Memory of 512 GB.
Vivo X300 (12GB RAM + 512GB)'s 200 MP + 50 MP + 50 MP Triple Rear Camera outclasses Xiaomi 15's 50 MP + 50 MP + 50 MP Triple Rear Camera in terms of resolution. Vivo X300 (12GB RAM + 512GB) 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'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 | Vivo X300 (12GB RAM + 512GB) |
| General | ||
| Country of Origin | India | |
| Model | 15 | X300 |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | (SIM1 + SIM2) | SIM1+SIM2/SIM1+eSIM1/eSIM1+eSIM2 |
| eSIM Support | Yes | |
| Device Type | Smartphone | Smartphone |
| OS Updates | 5 years | |
| Security Updates | 7 years | |
| Release Date | March 11, 2025 | December 02, 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 | Model, Documentation, Type-C Cable ,USB Power Adapter, SIM Ejector, Protective Case, Protective Film (applied) |
| Design | ||
| Dimensions | 71.2 x 152.3 x 8.08 mm | 71.9 x 150.6 x 8 mm |
| Weight | 191 g | 190 g |
| Bezel less | Yes | |
| Colors | White, Black, Green | Summit Red, Mist Blue, Elite Black |
| Display | ||
| Type | Color OLED Screen (68B) | Color AMOLED Screen (1B Colors) |
| Touch | Yes, 300 Hz Touch Sampling Rate | Yes |
| Size | 6.36 inches, 1200 x 2670 pixels, 120 Hz | 6.31 inches, 1216 x 2640 pixels, 120 Hz |
| Aspect Ratio | 20.5:9 | 20:9 |
| PPI | ~ 460 PPI | ~ 460 PPI |
| Screen to Body Ratio | ~ 90% | ~ 86.7% |
| Brightness | 4500 nits Local Peak Brightness | |
| HDR Support | Yes, HDR10+, Dolby Vision | Yes, HDR10+ |
| Features | Peak Brightness: 3200 Nits Covering 25% Display Area, Dimming: DC Dimming, Original Color Pro, Pro HDR, Wet Touch Technology, HDR10, HDR10+, Dolby Vision, TÜV Rheinland Low Blue Light (Hardware Solution) Certified, TÜV Rheinland Flicker Free Certified, TÜV Rheinland Circadian Friendly Certified | 2160Hz PWM, HDR10+, Night Eye Protection Mode 3.0, Game Eye Protection Mode 2.0, Sleep Comfort Mode, Smart Eye Protection Mode 3.0, Anti-Fatigue Brightness 2.0, Adaptive Color Temperature |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Memory | ||
| RAM | 12 GB | 12 GB |
| RAM Type | LPDDR5X | LPDDR5X Ultra |
| Expandable RAM | Upto 12 GB Extra Virtual RAM | |
| Storage | 512 GB | 512 GB |
| Storage Type | UFS 4 | 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: n1/2/3/5/7/8/12/20/25/26/28/38/40/41/48/66/75/77/78, NSA: n1/3/5/7/8/20/28/38/40/41/66/75/77/78 | n1/n2/n3/n5/n7/n8/n20/n25/n26/n28/n38/n40/n41/n66/n75/n77/n78 |
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By |
| Vo5G | Yes | |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | Wi-Fi 6 | 2.4GHz,5.0GHz, 6.0Ghz |
| Bluetooth | Yes, v6.0, A2DP, LE, aptX HD, aptX Adaptive | Yes, v6.0, A2DP, LE, aptX HD |
| USB | Yes, USB-C v3.2 | Yes, USB-C v3.2 |
| USB Features | USB on-the-go, USB Charging | USB Tethering, USB on-the-go, USB Charging |
| IR Blaster | Yes | Yes |
| Performance | ||
| AnTuTu Score | 2,349,482 (Total) (v10) 547,971 (CPU) 994,177 (GPU) 446,987 (Memory) 360,347 (UX) | |
| AnTuTu Storage Score | 168,399 | |
| Geekbench Score | 8,391 (Multi Core) (v6) 2,662 (Single Core) 18,093 (OpenCL) 24,464 (Vulkan) | |
| 3DMark Score | 6,101 (Wild Life Extreme) | |
| Camera Score | 147 (DxOMark) | |
| Speaker Score | 76 (Very Good) | |
| Battery Test Result | 16.15 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 | Yes, with GPS, BeiDou, GLONASS, Galileo, QZSS, NavIC, A-GPS, Cellular Positioning, Wi-Fi Positioning |
| Fingerprint Sensor | Yes, In Display | Yes, In Display Ultrasonic |
| Face Unlock | Yes | Yes |
| Sensors | Proximity Sensor, Ambient Light Sensor, Accelerometer, Gyroscope, Electronic Compass, IR Blaster, Laser Focus Sensor, Barometer, Flicker Sensor, X-Axis Linear Vibration Motor | Accelerometer, Ambient Light Sensor, Proximity Sensor, E-compass, Gyroscope |
| 3.5mm Headphone Jack | No | No |
| NFC | Yes | Yes |
| Cooling System | 4000 mm2 Liquid Cooling Vapor Chamber | |
| AI Features | Xiaomi HyperAI, AI Writing, AI Speech Recognition, AI Interpreter, AI Creativity Assistant, And More, Circle to Search With Google, Google Gemini | Veo 3 in Gemini, AI Image Studio, AI SuperLink |
| Water Resistance | Yes, 1.5 m upto 30 min | Yes, 1.5 m upto 30 min |
| IP Rating | IP68 | IP68, IP69 |
| Dust Resistant | Yes | Yes |
| Extra Features | Xiaomi Wing-type IceLoop system | vivo Office Kit, One-Tap Transfer, vivo DocMaster, Private Space, Vivo V3+ |
| Camera | ||
| Rear Camera | 50 MP ƒ/1.6 (Wide Angle) 23mm (wide), 1/1.31", 1.2µm, dual pixel PDAF, OIS 50 MP ƒ/2 (Telephoto) 60mm, PDAF (10cm - ∞), OIS, 3x optical zoom 50 MP ƒ/2.2 (Ultra Wide) 14mm, 115˚ | 200 MP ƒ/1.57 (Wide Angle) 200MP HPB 1/1.14" (OIS) CIPA 4.5 50 MP ƒ/2.67 (Telephoto) 50MP LYT-602 1/1.953" Telephoto (OIS) 3x Optical Zoom CIPA 4.5 50 MP ƒ/2 (Ultra Wide) 50MP JN1 1/2.76" wide-angle AF 119.4 degree |
| Camera Sensor | Light Fusion 900 | |
| OIS | Yes | Yes |
| Auto Focus | Yes | Yes |
| Features | Laser AF, Leica lens, dual-tone, 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 60x, HDR, Dynamic Shot, Portrait Mode, Master-Lens System (23mm, 35mm, 60mm, 75mm), Night Mode (Wide/Ultra Wide/Telephoto), 50MP Mode (Wide/Ultra Wide/Telephoto), Super Macro, Panorama, Long Exposure, Documents, Fastshot Mode, Supermoon, Pro Mode, Image Formats Captured: DNG, HEIF, JPEG, RAW Mode | Laser AF, Zeiss optics, Zeiss T lens Coating, Panorama, HDR, 3D LUT import, Snapshot, Portrait, Photo, Video, High Resolution, Pano, Ultra HD Document, Slo-mo, Long Exposure, Time-Lapse, Supermoon, Astro, Landscape & Night Mode, Pro, Live Photo, Portrait Video, Night, Super Macro, ZEISS Multifocal Portrait, Stage Mode 2.0, AI Storyboard, Telephoto Extender |
| Video Recording | 8K @ 24/30 fps UHD, 4K @ 24/30/60 fps UHD, 1080p @ 30/60 fps FHD, 720p @ 30 fps HD | 4K, 1080p |
| Flash | Yes, Dual LED | Yes, LED |
| Front Camera | 32 MP ƒ/2 (Wide Angle) Punch Hole | 50 MP ƒ/2 (Wide Angle) Punch Hole, Screen Flash |
| Front Video Recording | 4K @ 30/60 fps UHD, 1080p @ 30/60 fps FHD | 4K, 1080p |
| Front Camera Features | HDR, Portrait Mode, Palm Shutter, Voice Shutter, Timed Burst, Selfie Timer, Screen Flashlight, HDR10+ Video Recording, Video Teleprompter, Slow Motion Selfie, Time-Lapse Selfie | HDR |
| Technical | ||
| OS | Android v15 | Android v16 |
| Custom UI | Xiaomi HyperOS 2 | OriginOS 6 |
| Chipset | Qualcomm Snapdragon 8 Elite | Mediatek Dimensity 9500 |
| CPU | 4.32 GHz, Octa Core Processor | 4.21 GHz, Octa Core Processor |
| Core Details | 2x Prime Core@4.32 GHz & 6x Performance Core@3.53 GHz | 1 × C1-Ultra + 3 × C1-Premium + 4 × C1-Pro |
| GPU | Adreno 830 | Arm G1-Ultra |
| Java | No | No |
| Browser | Yes | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | MP3, FLAC, APE, AAC, OGG, WAV, AMR, AWB | WAV, MP3, MP2, MIDI, Vorbis, APE, FLAC |
| Video | MP4, MKV, WEBM, 3GP, TS, Supports HDR Display When Playing HDR10+, Dolby Vision, HDR Vivid Video Content | MP4, 3GP, AVI, Video Recording: MP4 |
| FM Radio | No | No |
| Speaker Type | Stereo | |
| Audio Features | Dolby Atmos | |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5240 mAh, Si/C | 6040 mAh, Li-ion Battery |
| Fast Charging | Yes, 90W HyperCharge | Yes, 90W FlashCharge |
| Wireless Charging | Yes, 50W HyperCharge | Yes, 40W |
| Reverse Charging | Yes | Yes |