Vivo X300 has better RAM than Vivo Y400 Pro 5G (8GB RAM + 256GB). In terms of display resolution, Vivo X300 has better resolution of 2640 x 1216 than Vivo Y400 Pro 5G (8GB RAM + 256GB) which has resolution of 2392 x 1080. Both have the same amount of internal memory.
| Name | Vivo X300 | Vivo Y400 Pro 5G (8GB RAM + 256GB) | 
| RAM | 12 GB | 8 GB | 
|---|---|---|
| Display | 6.31 in | 6.77 in | 
| Internal Memory | 256 GB | 256 GB | 
| Battery | 6040 mAh | 5500 mAh | 
| Camera | 200 MP + 50 MP + 50 MP Triple | 50 MP + 2 MP Dual | 
| Price | Rs. 54990 | Rs. 26998 | 
The launch Date of the first phone is October 13, 2025. The Expected cost of Vivo X300 is Rs. 54990. The launch Date of the second phone is June 20, 2025. The cost of Vivo Y400 Pro 5G (8GB RAM + 256GB) is Rs. 26998.
Vivo X300 has screen size of 6.31 inches which falls short to Vivo Y400 Pro 5G (8GB RAM + 256GB)'s 6.77 inch screen. There is AMOLED Screen Type in both the phones. Vivo X300 has display density of 484 PPI & Vivo Y400 Pro 5G (8GB RAM + 256GB) has only 388 PPI display density. In terms of screen to body ratio, Vivo Y400 Pro 5G (8GB RAM + 256GB) has better screen to body ratio of ~ 88.8% than Vivo X300's ~ 86.7%. Both phones have same aspect ratio of 20:9.
Vivo X300's larger 12 GB RAM is better for playing games and all with respect to Vivo Y400 Pro 5G (8GB RAM + 256GB)'s lower 8 GB RAM. and both have same Internal Memory of 256 GB.
Vivo X300's 200 MP + 50 MP + 50 MP Triple Rear Camera outshines Vivo Y400 Pro 5G (8GB RAM + 256GB)'s 50 MP + 2 MP Dual Rear Camera in terms of resolution. Vivo X300 will be better choice if you're looking to click lot of selfies as it has better 50 MP Front Camera in comparison to Vivo Y400 Pro 5G (8GB RAM + 256GB)'s 32 MP Front Camera.
Both the phones has Android Operating System but the first one runs on version 16 and the second one on 15 version.
| Name | Vivo X300 | Vivo Y400 Pro 5G (8GB RAM + 256GB) | 
| General | ||
| Country of Origin | India | |
| Model | X300 | Y400 Pro 5G | 
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM | 
| Dual Sim | Yes | Yes | 
| Sim Size | Nano-SIM + Nano-SIM + eSIM (max 2 at a time | Nano+Nano SIM | 
| SAR | 0.9 W/kg (Head) 0.9 W/kg (Body)  | |
| Device Type | Smartphone | Smartphone | 
| Release Date | October 13, 2025 | June 20, 2025 | 
| Design | ||
| Dimensions | 71.9 x 150.6 x 8 mm | 75 x 163.72 x 7.49 mm | 
| Weight | 190 g | 182 g | 
| Bezel less | Yes | |
| Colors | Black, Blue, Red, Purple, Pink | Black, Ocean Blue, Titanium, White | 
| Display | ||
| Type | Color AMOLED Screen (1B Colors) | Color AMOLED Screen (1B Colors) | 
| Touch | Yes | Yes | 
| Size | 6.31 inches, 1216 x 2640 pixels, 120 Hz | 6.77 inches, 1080 x 2392 pixels, 120 Hz | 
| Aspect Ratio | 20:9 | 20:9 | 
| PPI | ~ 484 PPI | ~ 388 PPI | 
| Screen to Body Ratio | ~ 86.7% | ~ 88.8% | 
| Brightness | 4500nits | |
| Features | 2160Hz PWM, HDR10+ | Always-on display | 
| Notch | Yes, Punch Hole | Yes, Punch Hole | 
| Curved Display | Yes | Yes | 
| Memory | ||
| RAM | 12 GB | 8 GB | 
| Expandable RAM | Upto 12 GB Extra Virtual RAM | Upto 8 GB Extra Virtual RAM | 
| Storage | 256 GB | 256 GB | 
| Storage Type | UFS 4 | UFS 2.2 | 
| Card Slot | No | |
| Connectivity | ||
| GPRS | Yes | Yes | 
| EDGE | Yes | Yes | 
| 3G | Yes | Yes | 
| 4G | Yes | Yes | 
| 5G | Yes | Yes | 
| 5G Bands | n1/n3/n5/n8/n28B/n38/n40/n41 (2535–2655 MHz)/n77/n78 | |
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By | 
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot | 
| Wifi Version | 2.4 GHz, 5 GHz | |
| Bluetooth | Yes, v5.4, A2DP, LE, aptX HD | Yes, v5.4 | 
| USB | Yes, USB-C v3.2 | Yes, USB-C v2.0 | 
| USB Features | USB Tethering, USB on-the-go, USB Charging | USB on-the-go, USB Charging | 
| IR Blaster | Yes | Yes | 
| Performance | ||
| AnTuTu Score | 720,000 (Total) (v10) | |
| Extra | ||
| GPS | Yes, with GPS, BeiDou, GLONASS, Galileo, QZSS, NavIC, A-GPS, Cellular Positioning, Wi-Fi Positioning | GPS, BeiDou, GLONASS, Galileo, QZSS | 
| Fingerprint Sensor | Yes, In Display | Yes, In Display | 
| Face Unlock | Yes | Yes | 
| Sensors | Accelerometer, Gyro, Proximity, Compass | Accelerometer, Gyro, Proximity, Compass | 
| 3.5mm Headphone Jack | No | No | 
| NFC | Yes | |
| AI Features | AI Super Link, AI Transcript Assist, AI Note Assist | |
| Water Resistance | Yes, 1.5 m upto 30 min | |
| Splash Resistant | Yes | |
| IP Rating | IP68 | IP65 | 
| Dust Resistant | Yes | Yes | 
| Camera | ||
| Rear Camera | 200 MP ƒ/1.7 (Wide Angle) 1/1.4", 0.56µm, PDAF, OIS 50 MP ƒ/2.6 (Telephoto) 70mm (periscope telephoto), 1/1.95", PDAF, OIS, 3x optical zoom 50 MP ƒ/2 (Ultra Wide) 15mm, 119˚ (ultrawide), 1/2.76", 0.64µm, AF  | 50 MP (Wide Angle) 2 MP (Depth Sensor)  | 
| Camera Sensor | Sony IMX882 | |
| OIS | Yes | |
| Auto Focus | Yes | Yes | 
| Features | Laser AF, Zeiss optics, Zeiss T lens Coating, Panorama, HDR, 3D LUT import | Photo, Portrait, Night, Video, 50 MP, Pano, Ultra HD Document, Slo-mo, Time-lapse, Supermoon, Pro, Food, Dual View, Film Camera | 
| Video Recording | 4K, 1080p | 4K, 1080p | 
| Flash | Yes, LED | Yes, LED | 
| Front Camera | 50 MP ƒ/2 (Wide Angle) Punch Hole, Screen Flash  | 32 MP ƒ/2 (Wide Angle) Punch Hole  | 
| Front Video Recording | 4K, 1080p | 1080p, 4K | 
| Technical | ||
| OS | Android v16 | Android v15 | 
| Custom UI | OriginOS 6 | Funtouch OS 15 | 
| Chipset | Mediatek Dimensity 9500 | Mediatek Dimensity 7300 | 
| CPU | 4.21 GHz, Octa Core Processor | 2.5 GHz, Octa Core Processor | 
| Core Details | 4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55 | |
| Fabrication Node | 4nm | |
| GPU | Arm G1-Ultra | Mali-G615 MC2 | 
| Java | No | No | 
| Browser | Yes | Yes | 
| Multimedia | ||
| Yes | Yes | |
| Music | WAV, MP3, MP2, MIDI, Vorbis, APE, FLAC | AAC, WAV, MP3, MP2, MP1, MIDI, Vorbis, APE, FLAC, OPUS | 
| Video | MP4, 3GP, AVI, Video Recording: MP4 | MP4, 3GP, AVI, TS, MKV, FLV | 
| FM Radio | No | No | 
| Speaker Type | Dual Stereo | |
| Document Reader | Yes | Yes | 
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery | 
| Size | 6040 mAh, Li-ion Battery | 5500 mAh, Li-ion Battery | 
| Fast Charging | Yes, 90W | Yes, 90W Fast Charging | 
| Wireless Charging | Yes, 40W | |
| Reverse Charging | Yes | |
| Video Playback Time | 21 hours | |