Introduction—A Big Battery Revolution in a Slender Body
The 2025 smartphone market is dominated by smartphones with high refresh rates, multiple sensor cameras, and premium processors. Yet battery life remains one of the most sought-after user issues. While everyone has experimented with bigger batteries, there has been the trade-off of size and weight.
Step forward the Vivo T4 5G—a phone that promises to turn that equation on its head. With an enormous 7300 mAh battery inside a body that is only 7.89 mm thick, it’s being marketed as India’s slimmest big-battery smartphone. Add in a Snapdragon 7s Gen 3 chip, a curved AMOLED display, quick charging, and a slim design, and you have a midrange contender that ticks most of the boxes.
But is the Vivo T4 5G just a battery gimmick, or is it really a well-rounded phone? Let’s find out.
Design & Build – Thin, Sleek, and Comfortable
Premium Looks Without the Premium Price
The Vivo T4 5G makes a statement. Its quad-curved AMOLED display blends smoothly with the slender metallic body, giving the impression of a flagship phone. It’s available in two striking colors—Emerald Blaze and Phantom Grey—that give the phone an eye-catching look without overdoing it.
Dimensions & Weight
Thickness: 7.89 mm
Weight: 199 g
Considering how massive this battery is on a phone, it is an engineering marvel. Weight distribution is excellent, and curved edges are great to hold one-handed for a long duration of time.
Durability
IP65 rated, Vivo T4 5G is dust- and low-pressure spray-waterproof—that is, it will endure unintentional splashes and dusty environments with ease.
Display—Indoors & Outdoors Visual Delight
Curved AMOLED Brilliance
6.77-inch size
Resolution: Full HD+
Panel: Quad-Curved AMOLED
Refresh Rate: 120 Hz
Peak Brightness: up to 5000 nits (local peak)
The screen on the Vivo T4 5G is one of the brightest in its segment. Scrolling through in clear sunlight late in the day or bingeing your favorite shows on Netflix in bed is no longer a concern. The colors stand out but are also crisp, and it’s ideal for content consumption.
Eye Care Features
The display is SGS-certified low blue light to reduce eye fatigue with long-time use. Vivo’s built-in eye protection mode adjusts brightness and warmth dynamically.
Performance—Snapdragon Power for the Masses
Processor & GPU
The Vivo T4 5G is powered by the Snapdragon 7s Gen 3—a 4 nm processor that provides a good balance between performance and battery life. It handles smooth everyday multitasking and can play trending games like BGMI and Genshin Impact on high graphics without causing any major frame drops.
RAM & Storage Models
8 GB RAM + 128 GB storage
8 GB RAM + 256 GB storage
12 GB RAM + 256 GB storage
LPDDR4X RAM and UFS 2.2 storage result in quick app opening and smooth multitasking. Virtual RAM expansion is also enabled, with the phone capable of taking up to 8 GB from storage for increased performance during heavy usage scenarios.
Battery—The Showstopper
7300 mAh of Endurance
Vivo claims that the Vivo T4 5G features India’s biggest and slimmest high-density battery. In real-world usage, this translates to:
Two days of moderate use
Approximately 12–13 hours of screen-on time
Comfortably surviving long gaming sessions, GPS navigation, and streaming without an afternoon recharge
Charging Speed
90 W FlashCharge—1% to 50% in ~33 minutes
Less than 1 hour for a full charge
Vivo’s battery management guarantees minimal degradation over time, making it a long-term reliability value.
Cameras—Balanced, Not Burdened
Rear Camera Configuration
50 MP primary sensor with OIS (Optical Image Stabilization)
2 MP depth sensor
The main camera produces fine, high-resolution images with fair dynamic range under the sun. OIS helps keep low-light images stabilized, but nighttime photography is about capturing shootable photos rather than spectacular results.
Front Camera
32 MP front-facing camera
Fine for video calls and social media posts, the front camera captures fair detail and nice skin tones.
Camera Features
Night Mode
Portrait Mode with bokeh control
4K video (rear), 1080p for front
Software – Android 15 with Funtouch OS 15
Vivo releases the Vivo T4 5G with Android 15 layered with Funtouch OS 15. It retains Vivo’s signature customization (themes, animations, and gestures), but it’s more refined and less resource-intensive than before.
Key Features
Smart Split Screen for multitasking
Enhanced RAM management
IR Blaster controls
Privacy dashboard with permission monitoring
Connectivity & Extras
- 5G with multi-bands
- Wi-Fi 6 for faster wireless speeds
- Bluetooth 5.3
- Dual stereo speakers for immersive audio
- In-display fingerprint scanner—quick and accurate
- IR blaster—convenient for home appliance remote control
Gaming Performance—Mid-Range Beast
Gaming is extremely responsive with Snapdragon 7s Gen 3, Adreno GPU, and a 120 Hz refresh rate. Tested:
BGMI: Smooth + 90 FPS
COD Mobile: Very High graphics + Max frame rate
Genshin Impact: High settings at 45–50 FPS
Vivo’s cooling system ensures temperatures remain pleasant even after intensive gaming.
Pricing & Variants in India (August 2025)
Variant | Price
8 GB + 128 GB | ₹21,999
8 GB + 256 GB | ₹23,999
12 GB + 256 GB | ₹25,999
Given its feature list, the Vivo T4 5G is excellent value for money, outpacing many competitors with similar specs.
Pros & Cons
Pros
Colossal 7300 mAh battery in slim body
Superbright, curved AMOLED display with 120 Hz refresh rate
Decent performance at price
Fast 90 W charging
IP65 dust & water resistance
Cons
No ultra-wide camera.
Storage can’t be expanded.
The low-light performance of the camera is mere average
Verdict—Designed for the Power User
The Vivo T4 5G is not trying to do it all for everyone. It is focusing on battery life, screen, and looks and delivering decent overall performance. For individuals who loathe daily phone charging—heavy travelers, gamers, and binge-watchers especially phone is an easy recommendation.
It is not endowed with the most configurable camera setup, but in every other feature, it competes well in the ₹20K–₹25K band.
