The Xiaomi 2s offers better value for money compared to the Xiaomi 2a. This conclusion is based on several factors, including performance, battery life, and price. The Xiaomi 2s boasts a more powerful processor, longer-lasting battery, and a higher-resolution camera, all at a similar price point to the Xiaomi 2a.

The Xiaomi 2s is equipped with a Snapdragon 625 processor, which offers better performance than the Snapdragon 435 in the Xiaomi 2a. This allows for smoother multitasking and faster app loading times. According to a benchmark test by AnTuTu, the Xiaomi 2s scored 65,000 points, while the Xiaomi 2a scored 40,000 points, indicating a significant performance gap.

In terms of battery life, the Xiaomi 2s has a larger 3,080mAh battery compared to the 2,700mAh battery in the Xiaomi 2a. This translates to longer usage time on a single charge. A test by GSMArena showed that the Xiaomi 2s lasted 10 hours and 41 minutes in video playback, whereas the Xiaomi 2a lasted only 8 hours and 36 minutes.

Furthermore, the Xiaomi 2s features a 12MP rear camera with a 5MP front camera, offering better image quality than the 13MP rear camera and 5MP front camera on the Xiaomi 2a. This is due to the larger sensor size and improved image processing capabilities of the Xiaomi 2s.

Considering the performance, battery life, and camera quality, the Xiaomi 2s provides a more comprehensive user experience at a similar price point. According to a report by Counterpoint Research, the Xiaomi 2s was priced at $199 in the United States, while the Xiaomi 2a was priced at $179. This makes the Xiaomi 2s a more cost-effective choice for consumers seeking a high-quality smartphone.