Display
Vivo S1: 6.38-inch Full-HD+ Super AMOLED display with 19.5:9 aspect ratio. Redmi Note 7 Pro: 6.3-inch FHD+ Dot Notch display with 19.5:9 aspect ratio. Realme X: 6.53-inch FHD+ AMOLED display with 19.5:9 aspect ratio with Corning Gorilla Glass 5 on top.
Processor
Vivo S1: Octa-core MediaTek Helio P65 SoC Redmi Note 7 Pro: Qualcomm Snapdragon 675 processor Realme X: Qualcomm Snapdragon 710 SoC.
Rear camera(s)
Vivo S1: 16MP (f/1.78), 8MP AI Super Wide Angle (f/2.2) secondary sensor along with 2MP Bokeh Camera (f/2.4). Redmi Note 7 Pro: Dual rear camera setup with 48MP Sony IMX586 and 5MP secondary sensors. Realme X: Dual rear camera setup with 48MP Sony IMX586 sensor and 5MP secondary sensor.
Selfie camera
Vivo S1: 32MP Front Camera (f/2.0) with waterdrop design Redmi Note 7 Pro: 13MP AI selfie camera. Realme X: 16MP elevating front camera Sony IMX471 sensor.
RAM and storage
Vivo S1: 4GB RAM/64GB storage and 6GB RAM/128GB storage. Redmi Note 7 Pro: 4GB RAM and 64GB storage, 6GB RAM and 64GB/128GB storage. Realme X: 4GB RAM/128GB internal storage and 8GB RAM/128GB internal storage.
Support for microSD card
Vivo S1: Up to 256GB Redmi Note 7 Pro: Up to 256GB Realme X: No additional memory slot
Battery
Vivo S1: 4500 mAh battery Redmi Note 7 Pro: 4,000mAh battery Realme X: 3,765 mAh battery
Operating system
Vivo S1: Android 9.0 based on Funtouch OS 9 Redmi Note 7 Pro: Android 9 Pie with MIUI 10 Realme X: Android 9 Pie
Fingerprint Sensor:
Vivo S1: In-display fingerprint sensor Redmi Note 7 Pro: fingerprint sensor on its rear panel. Realme X: In-display
Price
Vivo S1: 4GB RAM/128GB at Rs 17,999, 6GB RAM/64GB at Rs 18,990 while the 6GB RAM/128GB can be picked up for Rs 19,990 Redmi Note 7 Pro: Rs 13,999 Realme X: Rs 16,999 for the 4GB/128GB model, Rs 19,999 for the 8GB/128GB model. Rs 20,999 for the Spiderman limited edition.
What do we think?
Amongst Vivo S1, Redmi Note 7 Pro and Realme X the choice is yours depending on your preferences. If you are looking for a smartphone with good battery life then you can go for Vivo S1. The photography lovers can go for Redmi Note 7 Pro and Realme X because both the devices come with a 48MP rear camera whereas Vivo S1 sports a 16MP rear camera. But if you love taking a selfie then we would suggest you go for Vivo S1 as it features a 32MP front camera.
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