Both Vivo S1 and Oppo A5s (4GB RAM + 64GB) comes with same RAM. In terms of display resolution, Vivo S1 has better resolution of 2340 x 1080 than Oppo A5s (4GB RAM + 64GB) which has resolution of 720 x 1520. Vivo S1 has more internal memory than Oppo A5s (4GB RAM + 64GB)
| Name | Vivo S1 | Oppo A5s (4GB RAM + 64GB) |
| RAM | 4 GB | 4 GB |
|---|---|---|
| Display | 6.38 in | 6.2 in |
| Internal Memory | 128 GB | 64 GB |
| Battery | 4500 mAh | 4230 mAh |
| Camera | 16 MP + 8 MP + 2 MP Triple | 13 MP + 2 MP Dual |
| Price | Rs. 8999 | Rs. 15980 |
The launch Date of the first phone is August 7, 2019. The cost of Vivo S1 is Rs. 8999. The launch Date of the second phone is April, 2019. The cost of Oppo A5s (4GB RAM + 64GB) is Rs. 15980.
Vivo S1 has larger screen size of 6.38 inches in comparison to Oppo A5s (4GB RAM + 64GB)'s 6.2 inch screen. Vivo S1 has Super AMOLED Screen type where as Oppo A5s (4GB RAM + 64GB) has IPS LCD Screen type. Vivo's phone has display density of 404 PPI & OPPO's phone has only 270 PPI display density. In terms of screen to body ratio, Vivo's phone has better screen to body ratio of ~ 83.3% than OPPO's phone ~ 81.6%. Vivo S1 has 19.5:9 aspect ratio where as Oppo A5s (4GB RAM + 64GB) has 19:9 aspect ratio.
Both phones come with 4 GB RAM Vivo S1 has more Internal Memory (128 GB) than Oppo A5s (4GB RAM + 64GB) (64 GB).
Vivo S1's 16 MP + 8 MP + 2 MP Triple Rear Camera outshines Oppo A5s (4GB RAM + 64GB)'s 13 MP + 2 MP Dual Rear Camera in terms of resolution. Vivo S1 will be better choice if you're looking to click lot of selfies as it has better 32 MP Front Camera in comparison to Oppo A5s (4GB RAM + 64GB)'s 8 MP Front Camera.
Both the phones has Android Operating System but the first one runs on version 9.0 and the second one on 8.1(Oreo) version.
| Name | Vivo S1 | Oppo A5s (4GB RAM + 64GB) |
| General | ||
| Model | S1 | A5s |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | August 7, 2019 | April, 2019 |
| Design | ||
| Dimensions | 75.2 x 159.5 x 8.1 mm | 75.4 x 155.9 x 8.2 mm |
| Weight | 179 g | 170 g |
| Display | ||
| Type | Color Super AMOLED Screen (16M Colors) | Color IPS LCD Screen (16.7M) |
| Touch | Yes | Yes |
| Size | 6.38 inches, 1080 x 2340 pixels | 6.2 inches, 1520 x 720 pixels |
| Aspect Ratio | 19.5:9 | 19:9 |
| PPI | ~ 404 PPI | ~ 270 PPI |
| Screen to Body Ratio | ~ 83.3% | ~ 81.6% |
| Features | Full HD+, Always-on display | C3 Touch Panel Glass |
| Notch | Yes, Water Drop Notch | Yes, Water Drop Notch |
| Memory | ||
| RAM | 4 GB | 4 GB |
| Storage | 128 GB | 64 GB |
| Card Slot | Yes, upto 256 GB | Yes, upto 256 GB |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| VoLTE | Yes | Yes |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes, v5.0 | Yes, v4.2 |
| USB | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| USB Features | USB on-the-go | USB on-the-go |
| Extra | ||
| GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS | Yes |
| Fingerprint Sensor | Yes, In Display | Yes, Rear |
| Face Unlock | Yes | |
| Sensors | Accelerometer, Proximity, Compass, Gyroscope, Ambient Light Sensor | Magnetic Induction, Light Sensor, Proximity Sensor, G-sensor, Acceleration Sensor, Virtual Gyroscope, Pedometer, Compass |
| 3.5mm Headphone Jack | Yes | Yes |
| Camera | ||
| Rear Camera | 16 MP ƒ/1.8 (Wide Angle) 8 MP ƒ/2.2 (Ultra Wide) 2 MP ƒ/2.4 (Depth Sensor) | 13 MP + 2 MP |
| Auto Focus | Yes | |
| Features | HDR, Panorama | |
| Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 32 MP ƒ/2 | 8 MP |
| Front Video Recording | 1080p @ 30 fps FHD | |
| Technical | ||
| OS | Android v9.0 (Pie) | Android v8.1 (Oreo) |
| Chipset | Mediatek Helio P65 | Mediatek Helio MT6765 |
| CPU | 2 GHz, Octa Core Processor | 2.3 GHz, Octa Core Processor |
| Core Details | 2 GHz, Dual core, Cortex A75 + 1.7 GHz, Hexa Core, Cortex A55 | 4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53 |
| GPU | Mali-G52 MC2 | IMG GE8320 |
| Java | No | No |
| Browser | Yes, supports HTML5 | Yes, supports HTML5 |
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | MP3, AAC, APE, AMR, WAV, MID, OGG, FLAC, WMA |
| Video | Yes | AVI, 3GP, MP4, WMV, MKV, MOV, ASF, FLV |
| FM Radio | Yes | Yes |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 4500 mAh, Li-Po Battery | 4230 mAh, Li-ion Battery |
| Fast Charging | Yes, 18W Dual-Engine Fast Charging | |