In April 2025, India’s smartphone market welcomed two powerhouse devices: the Vivo T4 5G and the OPPO K13 5G. Launched on April 22 and April 21, respectively, these mid-range smartphones are redefining expectations with their massive battery capacities, impressive cameras, and cutting-edge features. Vivo’s T4 5G boasts a record-breaking 7,300 mAh battery and a 32MP selfie camera, while OPPO’s K13 5G offers a 7,000 mAh battery paired with a 50MP main camera. These launches highlight a growing trend in the smartphone industry: prioritizing long-lasting batteries to meet the demands of modern users. This article explores the key features, pricing, availability, and why large battery capacities are becoming a game-changer in 2025.
Vivo T4 5G: India’s Slimmest Smartphone with a 7,300 mAh Battery
Vivo has set a new benchmark with the T4 5G, claiming it to be India’s slimmest smartphone with a 7,300 mAh battery, measuring just 7.89 mm thick. Launched on April 22, 2025, this device combines power, portability, and premium design, making it a standout in the mid-range segment.
Unboxing Video Vivo T4 5G
Key Specifications of Vivo T4 5G
- Display: 6.77-inch FHD+ quad-curved AMOLED, 120Hz refresh rate, 5,000 nits peak brightness, Schott Shield glass.
- Processor: Qualcomm Snapdragon 7s Gen 3 chipset, scoring over 820,000 on AnTuTu.
- Memory and Storage: 8GB/12GB LPDDR4X RAM, 128GB/256GB UFS 2.2 storage, with up to 8GB virtual RAM expansion.
- Cameras:
- Rear: 50MP Sony IMX882 (OIS) + 2MP depth sensor with Aura Light.
- Front: 32MP selfie camera, supports 4K video at 30fps.
- Battery: 7,300 mAh with 90W fast charging, 7.5W reverse wired charging.
- Software: Android 15 with Funtouch OS 15, promising 2 years of software updates and 3 years of security patches.
- Build and Durability: IP65 dust and water resistance, MIL-STD-810H military-grade certification.
- Additional Features: In-display fingerprint sensor, IR blaster, 3.5mm headphone jack.
- Colors: Emerald Blaze, Phantom Grey.
Pricing and Availability
The Vivo T4 5G is priced competitively:
- 8GB + 128GB: ₹21,999
- 8GB + 256GB: ₹23,999
- 12GB + 256GB: ₹25,999
It will be available starting April 29, 2025, via Flipkart, Vivo India e-Store, and offline retailers like Croma and Reliance Digital. Launch offers include:
- ₹2,000 instant discount on HDFC, SBI, and Axis Bank cards.
- ₹2,000 exchange bonus on trade-ins.
- No-cost EMI for up to 6 months.
Why the Vivo T4 5G Stands Out
The 7,300 mAh battery is the largest ever in an Indian smartphone, offering up to two days of usage for gaming, streaming, or multitasking. The 90W fast charging ensures a full charge in under an hour, while reverse charging lets you power other devices. The 32MP selfie camera delivers crisp, high-quality selfies and 4K video recording, appealing to content creators. The inclusion of a 3.5mm headphone jack is a rare treat for wired audio fans, and the IP65 rating adds durability for everyday use. Powered by the Snapdragon 7s Gen 3, the T4 5G handles demanding tasks with ease, making it a versatile choice for budget-conscious tech enthusiasts.
OPPO K13 5G: Power-Packed with a 7,000 mAh Battery
OPPO launched the K13 5G on April 21, 2025, targeting users who prioritize battery life and camera performance. With a 7,000 mAh battery and a 50MP main camera, this device is designed for durability and stunning photography, all at an affordable price point.
OPPO K13 5G Unboxing video
Key Specifications of OPPO K13 5G
- Display: 6.7-inch FHD+ OLED, 120Hz refresh rate, 1,200 nits peak brightness.
- Processor: Qualcomm Snapdragon 6 Gen 4 chipset, scoring over 790,000 on AnTuTu.
- Memory and Storage: 8GB LPDDR4X RAM, 128GB/256GB UFS 3.1 storage.
- Cameras:
- Rear: 50MP (f/1.85) + 2MP depth sensor, dual LED flash, 4K video at 30fps.
- Front: 16MP (f/2.45) selfie camera.
- Battery: 7,000 mAh with 80W SUPERVOOC flash charging (62% charge in 30 minutes).
- Software: Android 15 with ColorOS 15.
- Build and Durability: IP65 dust and water resistance, passed 50+ quality tests for durability.
- Additional Features: In-display fingerprint sensor, IR blaster, stereo speakers, vapor chamber cooling (5,700 mm²).
- Colors: Not specified in official releases.
Pricing and Availability
The OPPO K13 5G is priced at:
- 8GB + 128GB: ₹17,999
- 8GB + 256GB: ₹19,999
Sales begin on April 25, 2025, through OPPO’s e-store, Flipkart, and select retail outlets. Launch offers include bank discounts and EMI options, though specific details are yet to be announced.
Why the OPPO K13 5G Impresses
The 7,000 mAh battery ensures exceptional longevity, lasting over a day even with heavy usage. OPPO’s 80W SUPERVOOC charging is optimized with a smart charging engine that protects battery health, pausing at 80% during prolonged charging and adjusting for low temperatures. The 50MP main camera captures vibrant, detailed images, and the dual LED flash enhances low-light photography. The Snapdragon 6 Gen 4 delivers smooth performance for gaming and multitasking, while the vapor chamber cooling prevents overheating. With a price under ₹20,000, the K13 5G offers premium features at a budget-friendly cost.
The Trend of Large Battery Capacities in Smartphones
The launches of the Vivo T4 5G and OPPO K13 5G underscore a significant trend in 2025: large battery capacities are becoming a priority for smartphone manufacturers. Here’s why this shift is reshaping the industry:
1. Meeting User Demands for Longer Battery Life
Modern smartphones are power-hungry, with 5G connectivity, high-refresh-rate displays, and resource-intensive apps like gaming and video streaming. Batteries in the 4,000–5,000 mAh range often struggle to last a full day. The 7,300 mAh (Vivo T4 5G) and 7,000 mAh (OPPO K13 5G) batteries address this by offering multi-day usage, reducing the need for frequent charging.
2. Advancements in Battery Technology
Innovations like Vivo’s BlueVolt battery anode material and OPPO’s single-cell battery design allow for larger capacities without compromising slimness. The Vivo T4 5G’s 7.89 mm thickness and the OPPO K13 5G’s durable build prove that massive batteries can fit into sleek, lightweight devices. Fast charging (90W for Vivo, 80W for OPPO) further minimizes downtime, making these phones practical for on-the-go users.
3. Competitive Mid-Range Market
The mid-range segment (₹15,000–₹25,000) is highly competitive, with brands like Vivo, OPPO, Xiaomi, and OnePlus vying for dominance. Offering large batteries sets devices apart, appealing to users who value longevity over incremental upgrades in processing power or camera specs. The Vivo T4 5G and OPPO K13 5G cater to this demand while maintaining affordability.
4. Shift Toward Durability and Sustainability
Both phones emphasize durability, with IP65 ratings and rigorous testing (e.g., OPPO’s 50+ quality checks, Vivo’s MIL-STD-810H certification). OPPO claims the K13 5G’s battery retains over 80% capacity after five years, addressing concerns about battery degradation. This focus on longevity aligns with consumer demand for sustainable, long-lasting devices.
Vivo T4 5G vs. OPPO K13 5G: Which Should You Choose?
| Feature | Vivo T4 5G | OPPO K13 5G |
|---|---|---|
| Price | ₹21,999–₹25,999 | ₹17,999–₹19,999 |
| Battery | 7,300 mAh, 90W fast charging | 7,000 mAh, 80W fast charging |
| Display | 6.77″ AMOLED, 120Hz, 5,000 nits | 6.7″ OLED, 120Hz, 1,200 nits |
| Processor | Snapdragon 7s Gen 3 | Snapdragon 6 Gen 4 |
| Main Camera | 50MP (OIS) + 2MP | 50MP + 2MP |
| Selfie Camera | 32MP (4K video) | 16MP |
| RAM/Storage | 8GB/12GB, 128GB/256GB | 8GB, 128GB/256GB |
| Durability | IP65, MIL-STD-810H | IP65, 50+ quality tests |
| Unique Features | 3.5mm jack, reverse charging, brighter display | Vapor chamber cooling, stereo speakers |
Choose Vivo T4 5G If:
- You want the largest battery (7,300 mAh) and faster 90W charging.
- You prioritize a brighter display (5,000 nits) and a 32MP selfie camera for high-quality selfies and videos.
- You prefer extras like a 3.5mm headphone jack and military-grade durability.
Choose OPPO K13 5G If:
- You’re looking for a more affordable option (starting at ₹17,999).
- You value stereo speakers and advanced cooling for gaming.
- You want a lighter device with a focus on long-term battery health.
Why This Matters for Consumers
The Vivo T4 5G and OPPO K13 5G cater to India’s growing demand for affordable, high-performance smartphones. Their massive batteries ensure uninterrupted usage, whether you’re a student, professional, or gamer. The competitive pricing makes premium features accessible, while the focus on durability and fast charging enhances practicality. As 5G adoption grows, these devices offer reliable connectivity without sacrificing battery life, setting a new standard for mid-range smartphones in 2025.
Conclusion
The launches of the Vivo T4 5G and OPPO K13 5G mark a pivotal moment in India’s smartphone market, where large battery capacities are becoming a defining feature. Vivo’s T4 5G impresses with its slim design, massive 7,300 mAh battery, and versatile 32MP selfie camera, while OPPO’s K13 5G offers incredible value with its 7,000 mAh battery and robust 50MP camera. Both devices reflect the industry’s shift toward power-efficient, durable, and user-centric smartphones. Whether you choose the Vivo for its premium features or the OPPO for its affordability, these phones are set to dominate the mid-range segment.
Which smartphone are you leaning toward? Share your thoughts in the comments, and stay tuned for more tech updates!
Sources: Times of India, Business Standard, LiveMint, 91Mobiles, OPPO India, Vivo India, and posts on X.