Compare OPPO K12x and Vivo T3x across battery life, camera output, and overall performance to make an informed choice.
The OPPO K12x and Vivo T3x serve as affordable 5G smartphones offering large batteries, reliable performance, and user-friendly software. OPPO emphasises durability, fast charging, and splash resistance, while Vivo delivers a polished display, clean UI, and efficient power management. This comparison explores design, technical specifications, features, and pricing to help you make an informed choice.
Here is a detailed comparison based on official specifications:
| Specification | OPPO K12x | Vivo T3x 5G |
|---|---|---|
Launch Date |
July 29, 2024 |
April 17, 2024 |
Display |
6.67‑inch HD+ LCD, 120 Hz |
6.58‑inch FHD+ LCD, 120 Hz |
Processor |
MediaTek Dimensity 6300 (6 nm) |
MediaTek Dimensity 6080+ (6 nm) |
RAM & Storage |
6 GB / 8 GB RAM; 128 GB / 256 GB UFS 2.2 |
4 GB / 6 GB (+ 8 GB Extended); 128 GB |
Rear Camera |
50 MP main + 2 MP depth |
50 MP main sensor |
Front Camera |
8 MP |
8 MP |
Battery & Charging |
5,100 mAh; 45 W SUPERVOOC |
5,000 mAh; 18 W charging |
Operating System |
Android 14 with ColorOS 14 |
Android 14 with Funtouch OS 14 |
5G Support |
Yes |
Yes |
Fingerprint Sensor |
In-display |
Side-mounted |
Disclaimer: The specifications mentioned above are based on the information available on the official website. Features may vary depending on model, configuration, and region. For the latest and most accurate details, please visit the official website or consult authorised retailers.
Here's a detailed comparison between the design and build of the two models:
| Feature | OPPO K12x | Vivo T3x |
|---|---|---|
Build |
Rugged, splash-resistant design |
Slim and lightweight |
Weight |
~191 g |
~188 g |
Dimensions |
~8.1 mm thickness |
~7.9 mm thickness |
Water/Dust Rating |
Splash touch support |
IP64 dust and water resistance |
Frame |
Plastic with armour finish |
Plastic with smooth matte finish |
Special Touch |
Reinforced edges for grip |
Rounded edges for comfort |
The K12x delivers AI-powered portrait enhancements and robust low-light shots. The T3x focuses on natural image reproduction and balanced colour quality.
| Feature | OPPO K12x | Vivo T3x 5G |
|---|---|---|
Rear Camera |
50 MP (AI) + 2 MP depth |
50 MP main sensor |
Front Camera |
8 MP |
8 MP |
Rear Features |
AI portrait, HDR, Night |
Natural colour capture |
Front Features |
Face beauty, HDR |
Soft light portrait |
Video |
1080p @ 30 fps (rear/front) |
1080p @ 30 fps (rear/front) |
Both devices use 6 nm Dimensity chipsets, ensuring smooth daily operation and moderate multitasking. The K12x offers faster charging, while the T3x keeps energy consumption low.
| Feature | OPPO K12x | Vivo T3x |
|---|---|---|
Processor |
MediaTek Dimensity 6300 (6 nm) |
MediaTek Dimensity 6080+ (6 nm) |
RAM + Storage |
Up to 8 GB + 256 GB |
Up to 8 GB + 128 GB |
Storage Type |
UFS 2.2 |
UFS 2.2 |
Battery Capacity |
5,100 mAh |
5,000 mAh |
Charging Speed |
45 W SUPERVOOC |
18 W fast charging |
Charging Tech |
Battery Health Engine |
Smart Charging & Vivo Energy Guard |
K12x enhances usability under harsh conditions, while T3x offers a clutter-free, efficient experience.
| Feature | OPPO K12x | Vivo T3x |
|---|---|---|
OS |
ColorOS 14 |
Funtouch OS 14 |
UI Focus |
Rugged tools, AI Boost |
Clean UI, better customisation |
Display Features |
Splash-touch, 1000 nits brightness |
Eye-care, adaptive colour tuning |
Extra Modes |
Armour mode, Dynamic island style |
Game Mode, Smart Controls |
Expansion & SIM |
Dual SIM + microSD |
Dual SIM + microSD |
Connectivity |
5G, Wi-Fi, Bluetooth, GPS |
5G, Wi-Fi, Bluetooth, GPS |
Here’s how pricing in the market typically compares:
| Variant | OPPO K12x | Vivo T3x |
|---|---|---|
4 GB + 128 GB |
– |
₹12,499 |
6 GB + 128 GB |
₹12,999 |
₹13,999 |
8 GB + 128 GB |
– |
₹15,499 |
8 GB + 256 GB |
₹15,999 |
– |
Disclaimer: Prices are approximate and may vary based on configuration, region, and special offers. Please check the official website for the most up-to-date pricing.
Choose OPPO K12x if you prioritise a sturdy build, splash resistance, and quicker charging. It’s better suited for users who need a phone that can endure rough use and recharge quickly.
Choose Vivo T3x if you want a lighter phone with cleaner software, good everyday performance, and long-term battery care. It’s ideal for users who prefer simplicity and comfort over ruggedness.
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Yes, it supports 45 W SUPERVOOC fast charging, which significantly reduces charging time.
Yes, at around 185 g, it feels lighter and more ergonomic for prolonged use.
Funtouch OS 14 on Vivo T3x is cleaner and smoother. ColorOS 14 on K12x has extra features but slightly more bloat.
Yes, both models come with 5G support for future-proof connectivity.
OPPO K12x includes splash-touch resilience and durability testing, while Vivo T3x offers standard protection without an official IP rating.