iQOO 15 vs vivo X300
The short answer
- iQOO 15 has the bigger battery: 7,000 mAh against 6,040.
- iQOO 15 charges faster, at 100 W against 90.
- iQOO 15 has the faster screen: 144 Hz against 120.
- iQOO 15 is the cheaper of the two at the price its maker announced: INR 72,999 against INR 75,999.
Compared only on figures both makers publish. Everything else is in the table below.
2 phones side by side.
| Specification |
 iQOO 15
₹72,999launch price · Nov 2025
|
 vivo X300
₹75,999launch price · Dec 2025
|
|---|---|---|
| Placement | ||
| At its price | Top quarter ₹70k–1L | Upper half ₹70k–1L |
| Spec index | 9.2 / 10 | 9.1 / 10 |
| Key Specs | ||
| RAM | 12 GB / 16 GB | 12 GB / 16 GB |
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | MediaTek Dimensity 9500 |
| Rear Camera | 50 MP + 50 MP + 50 MP | 200 MP + 50 MP + 50 MP |
| Front Camera | 32 MP | 50 MP |
| Battery | 7000 mAh | 6040 mAh |
| Display | 6.85 inches (17.40 cm) | 6.31 inches (16.03 cm) |
| General | ||
| Launch Date | November 26, 2025 (Official) | December 2, 2025 (Official) |
| Operating System | Android v16 | Android v16 |
| Custom UI | OriginOS 6 | OriginOS 6 |
| Performance | ||
| Chipset | Qualcomm Snapdragon 8 Elite Gen 5 | MediaTek Dimensity 9500 |
| CPU | Octa core (4.6 GHz, Dual core, Oryon 3rd Gen Prime + 3.62 GHz, Hexa Core, Oryon 3rd Gen Performance) | Octa core (4.21 GHz, Single core, C1-Ultra + 3.5 GHz, Tri core, C1-Premium + 2.7 GHz, Quad core, C1-Pro) |
| Architecture | 64 bit | 64 bit |
| Fabrication | 3 nm | 3 nm |
| Graphics | Adreno 840 | Arm Mali-G1-Ultra |
| RAM | 12 GB / 16 GB | 12 GB / 16 GB |
| RAM Type | LPDDR5X | LPDDR5X Ultra |
| Display | ||
| Display Type | LTPO AMOLED (Samsung M14) | LTPO AMOLED |
| Screen Size | 6.85 inches (17.40 cm) | 6.31 inches (16.03 cm) |
| Resolution | 1440x3168 px (2K+) | 1216x2640 px (1.5K) |
| Aspect Ratio | 19.8:9 | 19.5:9 |
| Pixel Density | 508 ppi | 461 ppi |
| Screen to Body Ratio (calculated) | 90.73 % | 90.14 % |
| Bezel-less display | Yes with punch-hole display | Yes with punch-hole display |
| Touch Screen | Yes, Capacitive Touchscreen, Multi-touch | Yes, Capacitive Touchscreen, Multi-touch |
| Brightness | 6000 nits (peak), 2600 nits (HBM) | 4500 nits (local peak) |
| HDR 10 / HDR+ support | Yes, HDR10+ and Dolby Vision | Yes, HDR10+ |
| Refresh Rate | 144 Hz (LTPO adaptive) | 120 Hz (LTPO adaptive) |
| Design | ||
| Height | 163.65 mm | 150.57 mm |
| Width | 76.8 mm | 71.92 mm |
| Thickness | 8.14 mm (Alpha) / 8.17 mm (Legend) / 8.28 mm (Apex) | 7.95 mm |
| Weight | 216.2 grams (Alpha) / 220 grams (Legend) / 221 grams (Apex) | 190 grams |
| Build Material | Back: Glass (Legend, Apex) Back: Fibre Glass (Alpha) | Front: Glass Frame: Aluminium Back: Glass |
| Colours | Legend, Alpha, Apex | Summit Red, Mist Blue, Elite Black |
| Waterproof | Yes, IP68 + IP69 | Yes, IP68 and IP69 |
| Main Camera | ||
| Camera Setup | Triple | Triple |
| Resolution | 50 MP f/1.88, Wide Angle, Primary Camera (Sony IMX921, 1/1.56" sensor size) 50 MP f/2.05, Ultra-Wide Angle Camera (1/2.76" sensor size) 50 MP f/2.65, Telephoto Camera (3x Periscope Optical Zoom) (Sony IMX882, 1/1.95" sensor size) | 200 MP f/1.68, Wide Angle, Primary Camera (1/1.4" sensor size, 0.56µm pixel size) 50 MP f/2.0, Ultra-Wide Angle Camera (119.4 degree field of view, autofocus) 50 MP f/2.57, Telephoto Camera (3x Optical Zoom, ZEISS APO) |
| Sensor | Sony IMX921 | Samsung ISOCELL HPB (Primary), Samsung ISOCELL JN1 (Ultra-Wide), Sony LYT-602 (Telephoto) |
| Autofocus | Yes | Yes |
| OIS | Yes | Yes |
| Flash | Yes, LED Flash | Yes, Dual LED Flash (Adaptive Zoom Flash) |
| Settings | Exposure compensation, ISO control | Exposure compensation, ISO control |
| Shooting Modes | Snapshot Landscape and Nightscape Portrait Still Video HD Document Panorama Slow Motion Time-Lapse Professional Mode Humanistic Street Photography | Continuous Shooting High Dynamic Range mode (HDR) Night Mode Pro Mode Panorama Super Macro Long Exposure Astro Time-Lapse Slo-mo ZEISS Multifocal Portrait Stage Mode 2.0 |
| Camera Features | 3 x Optical Zoom Auto Flash Face detection Touch to focus 2K Live Photo | ZEISS co-engineered optics ZEISS Natural Portrait 3 x Optical Zoom Auto Flash Face detection Touch to focus AI Image Studio |
| Video Recording | 7680x4320 @ 30 fps 3840x2160 @ 60 fps | 3840x2160 @ 120 fps 3840x2160 @ 60 fps 3840x2160 @ 30 fps 1920x1080 @ 240 fps 1920x1080 @ 120 fps 1920x1080 @ 60 fps 1920x1080 @ 30 fps |
| Video Recording Features | Slo-motion Time-Lapse Professional Mode | 4K 60 fps Portrait Video 4K Stage All-in-One Recording 4K 120 fps HDR video Slo-motion |
| Front Camera | ||
| Camera Setup | Single | Single |
| Resolution | 32 MP f/2.2, Wide Angle, Primary Camera | 50 MP f/2.0, Wide Angle, Primary Camera (1/2.76" sensor size, 0.64µm pixel size) |
| Flash | No | No |
| Video Recording | 3840x2160 @ 60 fps | 3840x2160 @ 60 fps 3840x2160 @ 30 fps 1920x1080 @ 60 fps 1920x1080 @ 30 fps |
| Autofocus | — | Yes |
| Camera Features | — | ZEISS Wide-Angle Front Camera 92 degree field of view |
| Battery | ||
| Capacity | 7000 mAh | 6040 mAh |
| Type | Li-ion (Silicon Anode) | Li-ion |
| Removable | No | No |
| Wireless Charging | No | No |
| Quick Charging | Yes, Fast, 100W | Yes, Fast, 90W |
| USB Type-C | Yes | Yes |
| Storage | ||
| Internal Memory | 256 GB / 512 GB | 256 GB / 512 GB |
| Expandable Memory | No | No |
| USB OTG | Yes | Yes |
| Storage Type | UFS 4.1 | UFS 4.1 |
| Network & Connectivity | ||
| SIM Slot(s) | Dual SIM, GSM+GSM (Nano SIM + Nano SIM) | Dual SIM, GSM+GSM (Nano SIM + Nano SIM) |
| SIM Size | SIM1: Nano, SIM2: Nano | SIM1: Nano, SIM2: Nano |
| Network Support | 5G Supported in India, 4G Supported in India, 3G, 2G | 5G Supported in India, 4G Supported in India, 3G, 2G |
| VoLTE | Yes | Yes |
| SIM 1 | - | - |
| 5G Bands | FDD N1 / N2 / N3 / N5 / N7 / N8 / N18 / N20 / N26 / N28A / N28B / N66 / N71 TDD N38 / N40 / N41 / N48 / N77 / N78 | FDD N1 / N2 / N3 / N5 / N7 / N8 / N20 / N25 / N26 / N28 / N66 / N75 TDD N38 / N40 / N41 / N77 / N78 |
| 4G Bands | FD-LTE B1 / B2 / B3 / B4 / B5 / B7 / B8 / B18 / B19 / B20 / B26 / B28A / B28B / B66 / B71 TD-LTE B34 / B38 / B39 / B40 / B41 / B42 / B43 / B48 | TD-LTE 2600(band 38) / 1900(band 39) / 2300(band 40) / 2500(band 41) / 3500(band 42) FD-LTE 2100(band 1) / 1900(band 2) / 1800(band 3) / 1700(band 4) / 850(band 5) / 2600(band 7) / 900(band 8) / 700(band 12) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 1900(band 25) / 850(band 26) / 700(band 28) / 1500(band 32) / 1700(band 66) |
| 3G Bands | WCDMA B1 / B2 / B4 / B5 / B6 / B8 / B19 | UMTS 2100 / 1900 / 1700 / 850 / 900 MHz |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 MHz | GSM 850 / 900 / 1800 / 1900 MHz |
| EDGE | Available | Available |
| SIM 2 | - | - |
| GPRS | Available | Available |
| Wi-Fi | Yes, Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) | Yes, Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) 2.4GHz 5GHz 6GHz, MIMO |
| Wi-Fi Features | Wi-Fi Direct, Mobile Hotspot | Wi-Fi Direct, Mobile Hotspot |
| Bluetooth | Yes, v6.0 | Yes, v6.0 |
| GPS | Yes with Glonass, Galileo, Beidou, QZSS, NavIC | Yes with A-GPS, Glonass, Galileo, Beidou, QZSS, NavIC |
| NFC | Yes | Yes |
| Infrared Sensor | Yes | Yes |
| USB Connectivity | USB 3.2 Gen 1, Mass storage device, USB charging, USB OTG | USB 3.2 Gen 1, Mass storage device, USB charging, USB OTG |
| SAR Value | — | Head: 1.137 W/kg, Body-worn: 1.143 W/kg |
| Multimedia | ||
| FM Radio | No | No |
| Stereo Speaker | Yes | Yes |
| Loudspeaker | Yes | Yes |
| Audio Jack | USB Type-C | USB Type-C |
| Audio Features | Hi-Fi audio | — |
| Sensors | ||
| Fingerprint Sensor | Yes | Yes |
| Fingerprint Sensor Position | In Display | In Display |
| Fingerprint Sensor Type | Ultrasonic | Ultrasonic |
| Heart Rate Monitor | No | No |
| Other Sensors | Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope | Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope, Colour temperature sensor |