Please include the specifications of the product when filling up your order. On the lower part portion of product image, then click "add note" to specify your prefer color, memory and other specification.
(ex. Vivo V15, 128gb, 6gb RAM, Coral Red) (ex. BT HF PRO SY BT1607, Red) 
 
Vivo S1 Pro
 
* BODY    
Dimensions    159.3 x 75.2 x 8.7 mm (6.27 x 2.96 x 0.34 in)
Weight    186.7 g (6.60 oz)
Build    Glass front, glass back, aluminum frame
SIM    Single SIM (Nano-SIM) or Hybrid Dual SIM (Nano-SIM, dual stand-by)
* DISPLAY    
Type    Super AMOLED
Size    6.38 inches, 99.9 cm2 (~83.4% screen-to-body ratio)
Resolution    1080 x 2340 pixels, 19.5:9 ratio (~404 ppi density)
* PLATFORM    
OS    Android 9.0 (Pie), Funtouch 9.2
Chipset    Qualcomm SDM665 Snapdragon 665 (11 nm)
CPU    Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
GPU    Adreno 610
* MEMORY    
Card slot    microSDXC (uses shared SIM slot)
Internal    128GB 8GB RAM
MAIN CAMERA    Quad    48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF
8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm
2 MP, f/2.4, (macro)
2 MP, f/2.4, (depth)
Features    LED flash, HDR, panorama
Video    1080p@30fps
* SELFIE CAMERA    
Single    32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm
Features    HDR
Video    1080p@30fps