The battery holds at least 2 days. Excellent reception on the net. The fingerprint sensor works very well. Very good performance with MIUI 8.
Xiaomi Redmi 3S 32GB - User reviews and ratings

Weight: 144 g
SoC: Quаlсоmm Snарdrаgоn 430 (МSМ8937)
CPU: 4х 1.4 GНz АRМ Соrtех-А53, 4х 1.61 GНz АRМ Соrtех-А53, 1400 MHz
GPU: Qualcomm Adreno 505, 450 MHz
RAM: 3 GB, 933 MHz
Storage: 32 GB
Memory cards: microSD, microSDHC, microSDXC
Display: 5 in, IPS, 1080 x 2246 pixels, 24 bit
Battery: 4100 mAh, Li-Polymer
OS: МΙUΙ V7 (Аndrоid 5.1.1 Lоlliрор)
Camera: 4160 x 3120 pixels, 1920 x 1080 pixels, 30 fps
SIM card: Nano-SIM / microSD, Nano-SIM
Wi-Fi: b, g, Wi-Fi Disрlаy, а, ас 5GНz, аd
USB: 2.0, USB Type-C
Bluetooth: 4.2
Positioning: GРS, А-GРS, GLОΝАSS
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Tom
12 January 2017, 13:24:53. Period of use: 3-6 months.
| Design: 5 | |
| Build: 5 | |
| Display: 5 | |
| Battery: 5 | |
| Performance: 5 | |
| Features: 5 | |
| Value: 5 | |
| Overall: 5 |
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Xiaomi Redmi 3S 32GB
Dimensions: 69.6 x 139.3 x 8.5 mm
Weight: 144 g
SoC: Qualcomm Snapdragon 430 (MSM8937)
CPU: 4x 1.4 GHz ARM Cortex-A53, 4x 1.61 GHz ARM Cortex-A53, Cores: 8
GPU: Qualcomm Adreno 505, 450 MHz
RAM: 3 GB, 800 MHz
Storage: 32 GB
Display: 5 in, IPS, 720 x 1280 pixels, 24 bit
Battery: 4100 mAh, Li-Polymer
OS: MIUI V7 (Android 5.1.1 Lollipop)
Camera: 4160 x 3120 pixels, 1920 x 1080 pixels, 30 fps

Xiaomi Redmi 10C
Dimensions: 76.56 x 169.59 x 8.29 mm
Weight: 190 g
SoC: Qualcomm Snapdragon 680 (SM6225)
CPU: 4x 2.4 GHz Cortex-A73, 4x 1.9 GHz Cortex-A53 (Kryo 265), Cores: 8
GPU: Qualcomm Adreno 610, 1114 MHz
RAM: 4 GB, 2133 MHz
Storage: 64 GB, 128 GB
Display: 6.71 in, IPS, 720 x 1650 pixels, 24 bit
Battery: 5000 mAh, Li-Ion
OS: MIUI 13 (Android 11)
Camera: 8190 x 6120 pixels, 1920 x 1080 pixels, 30 fps

Xiaomi Redmi Note 5 SD636 China
Dimensions: 75.4 x 158.6 x 8.05 mm
Weight: 181 g
SoC: Qualcomm Snapdragon 636 (SDM636)
CPU: 4x 1.8 GHz Cortex-A73, 4x 1.6 GHz Cortex-A53 (Kryo 260), Cores: 8
GPU: Qualcomm Adreno 509, 430 MHz
RAM: 3 GB, 4 GB, 6 GB, 1333 MHz
Storage: 32 GB, 64 GB, 128 GB
Display: 5.99 in, IPS, 1080 x 2160 pixels, 24 bit
Battery: 4000 mAh, Li-Polymer
OS: MIUI V9.2 (Android 8.0 Oreo)
Camera: 4000 x 3000 pixels, 1920 x 1080 pixels, 30 fps