Oppo K13 vs Realme P3 Which is Better in 2025: Detailed Comparison & Buying Guide

by Manish Yadav

Both these smartphones are 5G-enabled, feature the latest Snapdragon 6 Gen 4 processor, big batteries, AMOLED displays, and fast charging technology. However, there are key differences in battery size, charging speed, design, and durability. In this article, we will provide a detailed comparison of Oppo K13 and Realme P3, so that you can easily decide which one suits your needs in 2025.

Oppo K13 vs Realme P3 Which is Better in 2025 Design & Build Quality

When it comes to design, both Oppo K13 and Realme P3 follow modern aesthetics with slim bezels and punch-hole displays.

• Oppo K13 weighs around 208 grams and has a thickness of 8.45 mm. It feels slightly heavy in hand due to its huge 7000 mAh battery, but the solid build quality makes it durable. Oppo has also provided IP65 water and dust resistance, which is an extra layer of protection rarely seen in this segment.
• Realme P3 is designed to be lighter, making it more comfortable for single-hand use. The exact weight may vary by model, but it usually feels easier to carry compared to the bulky K13. However, Realme P3 does not officially come with water or dust resistance certification.

Verdict: If you want durability and protection, Oppo K13 is better. If you prefer a lightweight design, Realme P3 feels more user-friendly.

Display Quality

The display is a major factor in daily use, whether you are streaming, gaming, or just scrolling social media.

• Oppo K13 comes with a 6.70-inch AMOLED Full HD+ panel with a 120 Hz refresh rate. It delivers vibrant colors, deep blacks, and smooth animations, making it great for watching videos and playing games.
• Realme P3 features a 6.67-inch AMOLED display with 120 Hz refresh rate, marketed as an “Esports display” for gamers. It is slightly smaller but still immersive, with similar smoothness and clarity.

Verdict: Both phones have almost the same display quality. The difference is minimal, so you won’t notice much in real use.

Performance & Gaming

Performance is the area where both smartphones are almost identical, because they run on the same chipset.

• Both Oppo K13 and Realme P3 are powered by the Qualcomm Snapdragon 6 Gen 4 processor. This is a capable 5G chip built on efficient architecture that balances power and battery life.
• In terms of RAM and storage, Oppo K13 offers 8 GB RAM + 128 GB storage (with a 256 GB variant also available). Realme P3 comes in 6 GB and 8 GB RAM options with 128 GB storage.
• Benchmark scores show both devices crossing 750,000 points on AnTuTu, which means you can expect smooth gaming performance in titles like BGMI, COD Mobile, and Asphalt 9.
• The difference lies in cooling: Oppo K13 uses a large vapor chamber (VC) with graphite cooling, allowing longer gaming sessions without heating issues. Realme P3 uses an “AeroSpace Cooling System,” but Oppo’s implementation seems slightly better.

Verdict: For long gaming sessions, Oppo K13 may perform more consistently due to better heat management.Camera Comparison Oppo K13 vs Realme P3 Which is Better in 2025. Smartphone cameras play a huge role in buying decisions. Let’s compare:

• Oppo K13:
  • Rear: 50 MP primary + 2 MP mono lens
  • Front: 16 MP selfie camera
• Realme P3:
  • Rear: 50 MP AI camera (single sensor)
  • Front: Around 8-16 MP depending on region

In daylight, both cameras produce sharp, colorful images. Oppo’s extra mono sensor helps in portrait shots with better edge detection. Selfies are also better on Oppo with its 16 MP front camera, compared to Realme’s smaller sensor.

Low-light performance is average on both, as neither phone comes with advanced OIS (optical image stabilization).

Verdict: Oppo K13 wins slightly due to its extra mono sensor and better selfie camera.

Oppo K13 vs Realme P3 Which is Better in 2025 Battery & Charging

This is the most important difference between the two.

• Oppo K13:
  • 7000 mAh battery (huge capacity)
  • 80W SuperVOOC fast charging
  • Oppo claims the battery will retain 80% health even after 5 years of use
• Realme P3:
  • 6000 mAh battery
  • 45W fast charging

In daily life, Oppo K13 will last longer thanks to the bigger battery and also charge much faster with 80W technology. Realme P3 has decent backup but charging is slower in comparison.Verdict: Oppo K13 is clearly better in battery performance.

Software & Updates

• Oppo K13 runs on Android 15 with ColorOS 15.
• Realme P3 runs on Android with Realme UI, likely based on Android 15 as well.

Both brands usually promise 2-3 years of Android updates and 4 years of security patches in this segment. The experience depends on personal preference — ColorOS is feature-rich, while Realme UI is more minimal.Verdict: Tie  both are similar in software, with small differences in customization.

Extra Features

• Durability: Oppo K13 offers IP65 rating, Realme P3 does not.
• Speakers & Audio: Both support stereo speakers and high-resolution audio.
• Connectivity: Both are 5G ready with dual SIM support, Wi-Fi 6, and Bluetooth 5.3.

Price & Value

• Oppo K13: Around ₹17,999 in India (8 GB + 128 GB model).
• Realme P3: Around ₹15,999, depending on variant.

So, Realme P3 is cheaper by around ₹2,000, making it more attractive for budget buyers. But Oppo K13 justifies the extra cost with better battery, faster charging, and IP rating.

Oppo K13 vs Realme P3 Which is Better in 2025 Pros & Cons

Oppo K13 Pros & Cons

Pros: Huge 7000 mAh battery,Super fast 80W charging,Better cooling for gaming,IP65 water and dust resistance & Better selfie camera

Cons: Heavier and slightly more expensive

Realme P3 Pros & Cons

Pros: Cheaper price, Slimmer and lighter design, Same Snapdragon 6 Gen 4 performance & AMOLED 120 Hz display

Cons: Smaller battery and slower charging, no IP rating

Oppo K13 vs Realme P3 – which is better

• If you are a heavy user, play games for long sessions, or want a phone that lasts many years with reliable battery performance, Oppo K13 is the better choice. Its 7000 mAh battery, 80W charging, IP65 protection, and better cooling make it stand out.
• If you are a budget-conscious buyer who wants similar performance at a lower price, and you don’t mind slightly less battery and charging speed, Realme P3 is a good value pick. Oppo K13 wins overall, but Realme P3 offers great value for money.

Also Read: Infinix GT 20 vs Poco X7 Pro