Oppo r9 and Xiaomi 5 are worth starting with.

In terms of performance, Xiaomi 5 is far stronger than R9. Mi 5 high-end version is the flagship processor of Xiaolong 820,2016, with amazing single-core and image processing capabilities. One thing you can know about the performance gap between the two mobile phones is that Mi 5 is quad-core, with a running score of 13W, and R9 is eight nuclear, with a running score of 5W. Running score does not represent experience, but it represents the ultimate performance of a processor.

In terms of battery life, R9 is similar to the meter 5, R9 is slightly better, and the charging time is basically 80 minutes.

In terms of taking photos, I suggest you go to Baidu to read the article "OPPO R9 Photo Evaluation: Comparing Xiaomi 5". Because of its thin body, R9 reduces the size of the lens, and the imaging effect is not as good as M 5. Mi-5 is an ultrapixel on HTC, with low pixel but large photosensitive area, less noise and more light, but light color. Mi-5' s self-timer photo effect is worse than R9. R9 is more suitable for taking selfies. OPPO camera phone? In fact, it is to use consumer thinking inertia marketing in the era of functional machines. Don't take it seriously.

R9 is obviously not as generous as Mi5 in sensor support, for example, it only supports Bluetooth 4.0 and Xiaomi supports Bluetooth 4.2, Xiaomi supports NFC and R9 does not.

On the whole, if you like the appearance of R9 and don't play big games, you can consider starting. Otherwise, it is much safer to start from the meter 5. As for Xiaomi's fever, it's just a satirical joke in the industry. The control of meter 5 fever belongs to the standard level under the same performance level. Moreover, Xiaomi has always used top-level chips with strong performance, which makes people who are used to low-end chips very unaccustomed.