OPPO A1 Pro vs Vivo V20: Both devices have some similar features and specifications, but there are many key differences between them.
The OPPO A1 Pro has a 6.5-inch IPS LCD display with a resolution of 1080×2412 pixels, while the Vivo V20 has a slightly larger 6.44-inch AMOLED display with a resolution of 1080 x 2400 pixels. The Vivo V20 has a more vibrant and colour-accurate display than the OPPO A1 Pro.
In terms of battery life, the OPPO A1 Pro has a larger battery capacity at 4800 mAh, while the Vivo V20 has a 4,000 mAh battery. The OPPO A1 Pro will last longer on a single charge, but both devices will last through a full day of moderate to heavy usage.
Overall, both the OPPO A1 Pro and Vivo V20 are similar devices with similar features and specifications. The Vivo V20 has a better display, a more powerful processor, and a more powerful main camera. The OPPO A1 Pro has a larger battery capacity, which will result in longer battery life.