In terms of core hardware, the Redmi S2 comes with Xiaomi's tried and tested Qualcomm Snapdragon 625 processor with up to 4GB RAM and 64GB storage. While there is a rear-mounted fingerprint reader, the smartphone runs Android 7.1.2 Nougat out-of-the-box with MIUI 9.1 on top. The bad thing about the Note 5 is that it does not have a removable battery which the G5 has which should not prove to be a hassle in case the device freezes you can simply take off the battery. Xiaomi is trying to capitalize on the selfie-phone market by introducing a second phone in the budget range; the first was the Redmi Y1 which also comes with a 16megapixel sensor. Xiaomi is apparently projecting the Redmi S2 as its selfie smartphone to counter similar offerings by domestic competitors such as Huawei, Oppo, and Vivo. The phones comes under Google's Android One programme that also makes it a part of Project Treble. The Note 5 is loaded with 4GB of RAM compared to the G5 having 3GB RAM, more RAM means it can perform multitasking more efficiently making the device quicker as well. There is a 5-megapixel front camera with fixed focus and face recognition.
The Redmi S2 packs a AI-assisted 16 MP selfie snapper with an LED flash.
Apart from this, the phone is all set to have a dual rear camera set up with a 12-megapixel primary sensor and 5-megapixel depth sensor.
As apparent, the Mi A2 wins this segment with its premium camera specs. On the front, the Redmi Note 5 carried a decent 5MP sensor. As far as the batter life is concerned the Note 5 has a larger battery of 4000 mAh with the G5 having a smaller sized one of 2800 mAh giving you lesser batter backup though this criterion is dependent on a range of other factors. A third teaser claims the smartphone will have both an AI portrait mode as well as AI-based beautification features. However, if you are looking to buy a phone urgently then you can go for the Redmi Note 5 Pro as well.