vivo S1, Used – 128GB/6GB RAM – 4G LTE, 6.53″ FHD+ IPS LCD Display

Design & Build

• 6.53-inch FHD+ IPS LCD display with 2340 x 1080 resolution, 90.95% screen-to-body ratio, and 19.5:9 aspect ratio – notch-free “Zero Boundary” full-screen design with motorized pop-up camera 
• MediaTek Helio P70 octa-core processor (12nm) – 4×2.1GHz Cortex-A73 & 4×2.0GHz Cortex-A53, Mali-G72 MP3 GPU – mid-range 4G chipset with AI processing unit 
• 6GB LPDDR4X RAM with 128GB internal storage – also available in 4GB/128GB, 6GB/64GB, and 6GB/256GB variants – microSD expansion up to 256GB (dedicated slot) 
• Triple 12MP rear camera: 12MP dual-core main (f/1.78, 24MP light-sensitive units) + 8MP ultra-wide (120° FoV, f/2.2) + 5MP depth sensor (f/2.4) – AI scene recognition, AI portrait bokeh, AI body shaping; 4K video recording, 1080P slow-mo 
• 24.8MP motorized pop-up front camera (f/2.0) – AI face beauty, 103 facial feature points recognition, AR stickers, AI filters, portrait lighting effects, video beauty 
• 3940mAh battery – 18W Dual-Engine Fast Charging (9V/2A) – no wireless charging 
• Rear-mounted fingerprint sensor, Face Unlock, 3.5mm headphone jack, microUSB 2.0, Wi-Fi 802.11 ac (2.4GHz + 5GHz), Bluetooth 5.0, OTG support, FM radio
• 4G LTE connectivity – Dual SIM (Nano-SIM + Nano-SIM) – 4G LTE bands B1/B3/B5/B8, TDD-LTE B34/B38/B39/B40/B41 – no 5G support 
• Funtouch OS 9 based on Android 9 Pie – dedicated AI button for Jovi voice assistant and Smart Image Recognition 
• Multi-Turbo performance optimization – System Turbo + Game Turbo for reduced lag and frame drops, Game Mode with countdown floating window 
• 3D curved glass back with “Midsummer Dream” gradient finish – 161.97 x 75.93 x 8.54mm, 189.5g 
• Available in Ice Lake Blue, Petal Pink, and Midsummer Dream 

Key Highlights & Critical Considerations:

• First vivo S-series phone – Launched as vivo’s new “selfie-focused” series, positioned between the X and Z series with flagship features like pop-up camera and zero-notch display at a mid-range price point 
• Motorized pop-up front camera – 24.8MP camera rises from the top when activated; uses physical vapor deposition coloring for seamless integration with the body; rated for extended use 
• “Zero Boundary” full-screen display – No notch, punch-hole, or waterdrop cutout; 90.95% screen-to-body ratio provides uninterrupted viewing experience; 6.53-inch IPS LCD panel