Vivo X300 Pro 5G has better RAM than Realme P3 Ultra (8GB RAM + 256GB). In terms of display resolution, Realme P3 Ultra (8GB RAM + 256GB) has better resolution of 2800 x 1272 than Vivo X300 Pro 5G which has resolution of 2800 x 1260. Both have the same amount of internal memory.
| Name | Realme P3 Ultra (8GB RAM + 256GB) | Vivo X300 Pro 5G | 
| RAM | 8 GB | 12 GB | 
|---|---|---|
| Display | 6.83 in | 6.78 in | 
| Internal Memory | 256 GB | 256 GB | 
| Battery | 6000 mAh | 6510 mAh | 
| Camera | 50 MP + 8 MP Dual | 200 MP + 50 MP + 50 MP Triple | 
| Price | Rs. 22999 | Rs. 65990 | 
The launch Date of the first phone is March 19, 2025. The cost of Realme P3 Ultra (8GB RAM + 256GB) is Rs. 22999. The launch Date of the second phone is October 13, 2025. The Expected cost of Vivo X300 Pro 5G is Rs. 65990.
Vivo X300 Pro 5G has screen size of 6.78 inches which falls short to Realme P3 Ultra (8GB RAM + 256GB)'s 6.83 inch screen. Realme P3 Ultra (8GB RAM + 256GB) has AMOLED Screen type where as Vivo X300 Pro 5G has LTPO AMOLED Screen type. Vivo's phone has display density of 452 PPI & Realme's phone has only 450 PPI display density. In terms of screen to body ratio, Realme's phone has better screen to body ratio of ~ 93.8% than Vivo's phone ~ 91.6%. Both phones have same aspect ratio of 20:9.
Vivo X300 Pro 5G's larger 12 GB RAM is better for playing games and all with respect to Realme P3 Ultra (8GB RAM + 256GB)'s lower 8 GB RAM. and both have same Internal Memory of 256 GB.
They both have the same 50 MP + 8 MP Dual Rear Camera. Vivo X300 Pro 5G will be better choice if you're looking to click lot of selfies as it has better 50 MP Front Camera in comparison to Realme P3 Ultra (8GB RAM + 256GB)'s 16 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 | Realme P3 Ultra (8GB RAM + 256GB) | Vivo X300 Pro 5G | 
| General | ||
| Model | Realme P3 Ultra | V2502A | 
| 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 | March 19, 2025 | October 13, 2025 | 
| In The Box | 1 Realme P3 Ultra 5G, 1 USB Type-C Cable, 1 80W Adapter, 1 Protect Case, 1 SIM Card Needle, 1 Quick Guide | |
| Design | ||
| Dimensions | 76.9 x 163.1 x 7.38 mm | 75.5 x 161.2 x 8 mm | 
| Weight | 183 g | 226 g | 
| Bezel less | No | Yes | 
| Colors | Neptune Blue, Orion Red, Glowing Lunar White | Black, Blue, White, Brown | 
| Display | ||
| Type | Color AMOLED Screen (1B Colors) | Color LTPO AMOLED Screen (1B Colors) | 
| Touch | Yes, 240 Hz Touch Sampling Rate | Yes | 
| Size | 6.83 inches, 1272 x 2800 pixels, 120 Hz | 6.78 inches, 1260 x 2800 pixels, 120 Hz | 
| Aspect Ratio | 20:9 | 20:9 | 
| PPI | ~ 450 PPI | ~ 452 PPI | 
| Screen to Body Ratio | ~ 93.8% | ~ 91.6% | 
| Glass Type | Corning Gorilla Glass 7i | Scratch/drop-resistant glass | 
| Features | 1.5K Quad-Curved AMOLED Display, 600 nits (typ), 1200 nits (HBM), 1500 nits Peak Brightness, 3480Hz PWM Dimming, Contrast Ratio: 5,000,000: 1 Brightness Adjustment: 10,000 Level, Colour Gamut: 100% DCI-P3, Supports Dark Mode, Supports Eye Comfort | Ultra HDR image support | 
| Notch | Yes, Punch Hole | Yes, Punch Hole | 
| Curved Display | Yes | |
| Memory | ||
| RAM | 8 GB | 12 GB | 
| Expandable RAM | Upto 14 GB Extra Virtual RAM | Upto 12 GB Extra Virtual RAM | 
| Storage | 256 GB | 256 GB | 
| Storage Type | UFS 3.1 | 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 | 5G NR: n1/n2/n3/n5/n7/n8/n12/n20/n26/n28/n38/n40/n41/n66/n77/n78 | |
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By | 
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot | 
| Wifi Version | 802.11 a/b/g/n/ac/ax(Wi-Fi 6) | |
| Bluetooth | Yes, v5.4, A2DP, LE | Yes, v5.4, A2DP, LE, aptX HD | 
| USB | Yes, USB-C v2.0 | Yes, USB-C v3.2 | 
| USB Features | USB Tethering, USB on-the-go, USB Charging, USB Storage | USB Tethering, USB on-the-go, USB Charging | 
| IR Blaster | Yes | Yes | 
| Extra | ||
| GPS | Supports GPS, Beidou, GLONASS, Galileo, QZSS | Yes | 
| Fingerprint Sensor | Yes, In Display | Yes, In Display | 
| Face Unlock | Yes | Yes | 
| Sensors | Geomagnetic Sensor, Proximity Sensor, Light Sensor, Acceleration Sensor, Gyroscope, Infrared LED | Accelerometer, Gyro, Proximity, Compass | 
| 3.5mm Headphone Jack | No | No | 
| NFC | Not Available in Indian Variant | Yes | 
| Water Resistance | Yes, 2.5 m upto 30 min | Yes, 1.5 m upto 30 min | 
| IP Rating | IP68 | IP68 | 
| Dust Resistant | Yes | Yes | 
| Extra Features | 6050mm2 VC Cooling System, LPDDR5x RAM, AnTuTu: 1450K+, GT Boost, Bypass Charge, AI Motion Control, AI Touch Control, Super Linear Dual Speakers, Supports OReality Audio, Dual-Mic Noise Cancellation, Hi-Res Audio Certification, AI Eraser, AI Best Face, AI Motion Deblur, AI Smart Loop, AI Recording Summary, AI Writer, Circle to Search, Google Gemini | |
| Camera | ||
| Rear Camera | 50 MP ƒ/1.8 (Wide Angle) 24mm (wide), 1/1.56", 1.0µm, multi-directional PDAF, OIS 8 MP ƒ/2.2 (Ultra Wide) 16mm, 112˚ (ultrawide), 1/4.0", 1.12µm | 50 MP ƒ/1.6 (Wide Angle) 24mm (wide), 1/1.28", 1.22µm, PDAF, OIS 200 MP ƒ/2.7 (Telephoto) 85mm (periscope telephoto), 1/1.4", 0.56µm, multi-directional PDAF, OIS, 3.7x optical zoom, macro 2.7:1 50 MP ƒ/2 (Ultra Wide) 15mm, 119˚ (ultrawide), 1/2.76", 0.64µm, AF | 
| Camera Sensor | Sony IMX896 OIS | |
| OIS | Yes | Yes | 
| Auto Focus | Yes | Yes | 
| Features | Photo, Video, Portrait, Night Scene, Street Photography, Panorama, Professional, High Pixel, Movie, Slow Motion, Long Exposure, Document, Tilt Shift, Timelapse Photography, Multi Scene Video, Underwater Camera | Laser AF, color spectrum sensor, Zeiss optics, Zeiss T* lens coating, panorama, HDR, 3D LUT import | 
| Video Recording | 4K @ 30/60 fps UHD, 1080p @ 30/60 fps FHD | 8K @ 30 fps UHD, 4K @ 60 fps UHD, 1080p @ 60 fps FHD | 
| Flash | Yes, LED | Yes, LED | 
| Front Camera | 16 MP ƒ/2.4 (Wide Angle) FOV: 85°,Lens: 5P Punch Hole | 50 MP ƒ/2 (Wide Angle) Punch Hole, Screen Flash | 
| Front Video Recording | 1080p @ 60 fps FHD | 4K @ 60 fps UHD, 1080p @ 60 fps FHD | 
| Technical | ||
| OS | Android v15 | Android v16 | 
| Custom UI | realme UI 6 | OriginOS 6 | 
| Chipset | Mediatek Dimensity 8350 Ultra | Mediatek Dimensity 9500 | 
| CPU | 3.35 GHz, Octa Core Processor | 4.21 GHz, Octa Core Processor | 
| Core Details | 1x3.35 GHz Cortex-A715 & 3x3.20 GHz Cortex-A715 & 4x2.20 GHz Cortex-A510 | |
| GPU | Mali G615-MC6 | Arm G1-Ultra | 
| Java | No | No | 
| Browser | Yes | Yes | 
| Multimedia | ||
| Yes | Yes | |
| Music | FLAC, WMA, IMY, AAC, OGG, M4A, MID, MP3, AMR, WAV, APE | WAV, MP3, MP2, MIDI, Vorbis, APE, FLAC | 
| Video | AVI, 3GP, ASF, FLV, MKV, MOV, MP4, WMV | MP4, 3GP, AVI, Video Recording: MP4 | 
| FM Radio | No | No | 
| Document Reader | Yes | Yes | 
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery | 
| Size | 6000 mAh, BLPC39 Lithium-ion Polymer Battery | 6510 mAh, Li-ion Battery | 
| Fast Charging | Yes, 80W SUPERVOOC charging | Yes, 90W Fast Charging | 
| Wireless Charging | Yes, 40W Wireless | |
| Reverse Charging | Yes, 5W | |