In a smartphone market dominated by large, unwieldy flagships, Vivo has consistently dared to redefine its premium strategy, and the Vivo X300 is the pinnacle of that philosophy for late 2025. It arrives in India not as a successor focused on marginal improvements, but as a full-fledged compact flagship that refuses to compromise on power, battery life, or camera capability. Where other manufacturers simply offer “mini” versions that cut critical hardware features, the X300 delivers top-tier performance and photography in a form factor that is genuinely comfortable for one-handed use.
The Vivo X300 has generated immense buzz, largely due to its blend of the powerful MediaTek Dimensity 9500 chipset, a camera system co-engineered with ZEISS that boasts a 200MP main sensor, and a remarkably large 6040mAh battery packed into a svelte frame. I have taken this device through an exhaustive testing period, pushing its performance in strenuous gaming sessions, analyzing its photographic output in varied Indian lighting conditions, and verifying the longevity of its class-leading battery.
Complete Specifications: Compact Design, Flagship Core
The engineering marvel of the Vivo X300 lies in how Vivo managed to integrate such demanding hardware into its 6.31-inch chassis. At its heart is the formidable MediaTek Dimensity 9500 processor, built on a power-efficient 3nm process. This chip, which competes directly with the best Snapdragon offerings of 2025, features a multi-core architecture clocked up to an aggressive 4.21 GHz. This processing core is complemented by Vivo’s dedicated imaging silicon, the V3+ chip, which handles complex computational photography tasks like 4K HDR portrait video processing, offloading the CPU for smoother overall performance.
The memory and storage configurations are generous, reflecting the flagship status: starting with 12GB of LPDDR5X RAM and 256GB of UFS 4.1 storage, with options extending up to 16GB RAM and 512GB storage. This combination ensures phenomenal multitasking capability and lightning-fast application load times, critical for a truly fluid user experience. The phone runs on the new OriginOS 6 based on Android 16 out of the box, marking a significant shift away from the legacy Funtouch OS and bringing a cleaner, more fluid, and feature-rich interface to global users. Furthermore, Vivo is committing to an impressive five years of OS updates and seven years of security patches, a warranty period that rivals Apple and Samsung’s best offerings and significantly enhances the long-term value proposition of the Vivo X300.
- Processor: MediaTek Dimensity 9500 (3nm) with Vivo V3+ Imaging Chip
- RAM/Storage: Up to 16GB LPDDR5X / 512GB UFS 4.1
- Battery: 6040mAh (Si/C Li-Ion)
- Charging: 90W Wired HyperCharge, 40W Wireless Charging
- Durability: IP68 and IP69 ratings
Display Quality: The Brilliance of 8T LTPO AMOLED
The display on the Vivo X300 is a jewel: a 6.31-inch 8T LTPO AMOLED panel running at a 120Hz refresh rate. The move to a completely flat panel is a design choice that prioritizes usability, eliminating accidental touches and distortion inherent to curved screens, proving that Vivo is focused on delivering a pragmatic user experience.
The display’s technical specifications are breathtaking: a resolution of $2640 \times 1216$ pixels (1.5K), HDR10+ support, and an astonishing 4,500 nits of peak brightness. In real-world use, this peak brightness, combined with the excellent 8T LTPO technology, ensures that sunlight legibility is not just adequate, but superb. Moreover, the display’s ability to scale its refresh rate down to 1Hz contributes significantly to its outstanding battery longevity. The inclusion of an ultrasonic fingerprint sensor beneath the screen provides fast, reliable, and secure biometric unlocking, reinforcing the compact flagship status of the Vivo X300.
Camera Test: The 200MP ZEISS Vision
Vivo’s X-series has always been defined by its photographic prowess, and the Vivo X300 elevates this legacy with a revolutionary triple-camera setup co-engineered with ZEISS:
- Primary: 200MP Samsung HPB sensor, $f/1.68$ aperture, OIS
- Ultrawide: 50MP Samsung JN1 sensor, $119^\circ$ FOV
- Telephoto: 50MP Sony LYT-602 APO lens, 3x Optical Zoom, OIS
In my field tests, the 200MP primary sensor is a detail monster, producing stunning 12MP binned photos with incredible texture, wide dynamic range, and accurate color consistency, even in challenging high-contrast scenes. The integration of OIS is exceptional, ensuring sharp stills and rock-steady video.
The true versatility, however, comes from the Telephoto lens. While the X300 Pro boasts a 200MP periscope zoom, the standard X300’s dedicated 50MP 3x optical telephoto is arguably more practical for everyday portraiture and street photography, offering a pleasingly shallow depth of field and consistent color matching with the main sensor. The optional ZEISS Telephoto Extender Kit, available separately, can push the zoom capabilities far beyond conventional limits, transforming the X300 into a serious long-range photographic tool. Low-light performance is a hallmark, with the large main sensor and Vivo’s refined computational algorithms delivering bright, clean night shots with minimal noise and well-controlled lens flare. The 50MP front camera with autofocus also guarantees crisp selfies and high-quality 4K video recording, a crucial upgrade for video content creators.
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Gaming FPS and Thermal Management
The Vivo X300 might be a compact camera phone, but its gaming performance is uncompromising. The combination of the Dimensity 9500 and the new OriginOS 6 provides a level of system fluidity that is immediately noticeable. Testing intensive titles demonstrates the chip’s capability:
- Genshin Impact: Maintains a smooth and stable 60 FPS average on high settings, showcasing the efficiency of the GPU and the thermal system.
- Call of Duty: Mobile: Runs flawlessly at the maximum supported frame rates (typically 120 FPS in optimized modes).
Thermal management is handled by a sophisticated Glacier Cooling System with an advanced vapor chamber and capillary core design. During extended gaming sessions (over 45 minutes of Genshin Impact), the surface temperature of the Vivo X300 remains well within comfortable limits, typically peaking around $44^\circ C$. Crucially, the phone avoids aggressive thermal throttling, ensuring that the smooth frame rates are maintained consistently, giving competitive mobile gamers a genuine edge. The stereo speakers deliver rich, detailed audio that enhances the immersion, making the X300 a powerhouse for both work and play.
Battery Life and HyperCharge Speed
One of the most defining and surprising features of the compact Vivo X300 is its monumental 6040mAh Silicon Carbon battery. This capacity is often reserved for much larger, Pro-sized flagship devices. Thanks to the efficient 3nm Dimensity 9500 chip and the adaptive 8T LTPO display, the Vivo X300 delivers truly exceptional battery life. Heavy users can confidently expect a full day and a half of use, while moderate users will easily stretch into a second day. GSMArena’s battery test results suggest an outstanding Active Use score, cementing its position as a class leader in battery endurance.
When charging is required, the Vivo X300 provides dual fast-charging support:
- 90W Wired HyperCharge: Capable of refueling the entire 6040mAh unit in under 40 minutes, minimizing downtime.
- 40W Wireless Charging: A robust and convenient wireless solution, a premium feature not often seen on compact flagships.
Latest India Price and Availability
The Vivo X300 was officially launched in India on December 2, 2025, with sales commencing on December 10, 2025. It is available across major online and offline retail channels in three distinct color options: Elite Black, Mist Blue, and Summit Red.
The official pricing for the Vivo X300 in India is structured as follows:
| Variant | Price in India |
| 12GB RAM + 256GB Storage | ₹ 75,999 |
| 12GB RAM + 512GB Storage | ₹ 81,999 |
| 16GB RAM + 512GB Storage | ₹ 85,999 |
Vivo is offering compelling launch benefits, including instant cashback on select bank cards and complimentary accessories, making the initial purchase even more attractive.
Final Verdict: The Undisputed Compact Champion
The Vivo X300 is arguably the best compact flagship smartphone released in 2025. It successfully challenges the notion that smaller phones must compromise on power or features. It marries the robust performance of the Dimensity 9500 with a groundbreaking camera system, and wraps it all in an incredibly user-friendly and durable (IP69-rated) form factor. While the Pro version targets the ultimate camera enthusiast with its unique periscope lens, the standard X300 delivers the perfect balance of camera excellence, flagship performance, and genuinely comfortable ergonomics. The Vivo X300 is more than just a phone; it’s the definitive choice for the user who demands a no-compromise flagship that still fits perfectly in their hand and their pocket.