This is a side-by-side smartphone specs comparison of the Vivo S1 Pro and OPPO A77s.
The Vivo S1 Pro has a 6.38-inch display, Qualcomm Snapdragon 665 processor, quad cameras, 4G LTE (with VoLTE) connectivity, and 4500mAh battery.
Meanwhile, the OPPO A77s has a 6.56-inch display, Qualcomm Snapdragon 680 processor, dual cameras, 4G LTE connectivity, and 5000mAh battery.
| Specs | Vivo S1 Pro | OPPO A77s | 
|---|---|---|
| Picture | 
				
					 
					
						
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						★★★★★ 3.7/5 stars (202 ratings)						
						
						
						 
					
										
					
					
					
					
					
					
					
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| Screen | 6.38-inch FHD+ Super AMOLED Display (1080 x 2340 Pixels, ppi) with 19.5:9 Aspect Ratio & Notch | 6.56-inch HD+ IPS LCD Display (720 x 1612 Pixels, 269 ppi) with Panda Glass, 20.15:9 Aspect Ratio and notch | 
| OS | Android 9.0 Pie with Funtouch OS 9.2 | Android 12 with ColorOS 12.1 | 
| Chipset | Qualcomm Snapdragon 665 | Qualcomm Snapdragon 680 | 
| CPU | Octa Core CPU 4x Kryo 260 Gold @ 2.0GHz & 4x Kryo 260 Silver @ 1.8GHz  | 
					Octa Core CPU 4x Kryo 265 Gold @ 2.4GHz & 4x Kryo 265 Silver @ 1.9GHz  | 
				
| GPU | Adreno 610 | Adreno 610 | 
| RAM | 8 GB | 8 GB | 
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| Rear Camera | Quad Cameras:  48MP Main Camera (f/1.8 Aperture, PDAF) 8MP Ultra-wide (f/2.2 Aperture, 108° FOV) 2MP Macro (f/2.4 Aperture) 2MP Depth Sensor -LED Flash -4K Video Recording  | 
				Dual Cameras:  50MP Main Camera (f/1.8 Aperture, Autofocus) 2MP Depth Sensor -LED Flash -Up to 1080p video recording  | 
			
| Front Camera | 
						32 Megapixels (f/2.0 Aperture) | 
					
						8 Megapixels (f/2.0 Aperture) | 
				
| Storage | 128GB | 128GB | 
| Expansion | 256GB via microSD | 1TB via microSD | 
| SIM | Dual SIM (Nano-SIM) | Dual SIM (Nano-SIM) | 
| Networks | 4G LTE (with VoLTE), 3G HSPA+, 2G EDGE & GPRS Networks | 4G LTE, 3G HSPA+, 2G EDGE & GPRS Networks | 
| Wi-Fi | Wi-Fi 802.11 b/g/n/ac (Dual Band) | Wi-Fi 802.11 b/g/n/ac (dual band) | 
| NFC | No | Yes | 
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | 
| Infrared | ||
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| Position | A-GPS, GLONASS, Galileo & BeiDou | GPS with A-GPS, GLONASS, GALILEO, BeiDou, and QZSS | 
| USB OTG | Yes | Yes | 
| USB | USB Type-C | USB Type-C | 
| 3.5mm Audio Jack | Yes | Yes | 
| Audio Enhancement | None | Dirac 3.0 and Up to 200% Ultra Volume mode | 
| FM Radio | Yes | No | 
| Sensors | 
					Face Recognition & Fingerprint Sensor					 Proximity Sensor & Ambient Light Sensor Compass, Gyroscope & Accelerometer  | 
					
					Face Recognition & Fingerprint Sensor Proximity Sensor & Ambient Light Sensor Compass & Accelerometer  | 
				
| Battery | 4500 mAh Li-Po Battery (Non-removable) 18W Fast Charging (Dual Engine)  | 
						5000 mAh Li-Po Battery (Non-removable) 33W Fast Charging (SUPERVOOC, 100% in 70 minutes)  | 
				
| Material | Glossy Plastic | Glass front, Plastic back with faux leather texture (Sunset Orange only) | 
| Size | 159.25 x 75.19 x 8.68 mm | 163.74 x 75.03 x 7.99 mm | 
| Weight | 186.7 g | 187 g (Starry Black) or 190 g (Sunset Orange) | 
| Colors | Fancy Sky and Knight Black | Starry Black and Sunset Orange | 
| Release Date | November 20, 2019 | October 13, 2022 | 
| Price | ₱15,999.00 - Official Price in the Philippines | ₱13,999.00 - Official Price in the Philippines | 
| Buy Online | 
								Vivo S1 Pro on Lazada  Vivo S1 Pro on Shopee  | 
							
								OPPO A77s on Lazada  OPPO A77s on Shopee  |