| Hardware and OS | vivo Y15a | |
| Operating system | Android 11, Funtouch 11.1 | |
| Processor | Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) | |
| Chipset | Mediatek MT6765 Helio P35 (12nm) | |
| GPU | PowerVR GE8320 | |
| Internal memory | 64GB 4GB RAM | |
| External memory | microSDXC (dedicated slot) | |
| Display | vivo Y15a | other phones |
| Type | IPS LCD | |
| Size | 6.51 inches, 102.3 cm2(~83.0% screen-to-body ratio) | |
| Resolution | 720 x 1600 pixels, 20:9 ratio | |
| Colors | Wave Green, Mystic Blue | |
| Design | vivo Y15a | other phones |
| Body build | Glass front, plastic back, plastic frame | |
| SIM | Dual SIM (Nano-SIM, dual stand-by) | |
| Dimensions | 164 x 75.2 x 8.3 mm (6.46 x 2.96 x 0.33 in) | |
| Weight | 179 g (6.31 oz) | |
| Connectivity | vivo Y15a | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 2100 | |
| 4G Network | 1, 3, 5, 8, 28, 38, 40, 41 | |
| WLAN | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | |
| Bluetooth | 5.0, A2DP, LE | |
| GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS | |
| NFC | No | |
| USB | microUSB 2.0, USB On-The-Go | |
| Speed | HSPA 42.2/5.76 Mbps, LTE | |
| Technology | GSM / HSPA / LTE | |
| Main Camera | vivo Y15a | other phones |
| Camera | 13 MP, f/2.2, 27mm (wide), AF 2 MP, f/2.4, (depth) | |
| Features | LED flash, panorama | |
| Video | 1080p@30fps | |
| Selfie camera | vivo Y15a | other phones |
| Camera | 8 MP, f/2.0 | |
| Video | 1080p@30fps | |
| Multimedia | vivo Y15a | other phones |
| Radio | FM radio | |
| 3.5 mm Jack | Yes | |
| Loudspeaker | Yes | |
| Features | vivo Y15a | other phones |
| Sensors | Fingerprint (side-mounted), accelerometer, proximity, compass | |
| Battery | vivo Y15a | other phones |
| Type | Li-Po 5000 mAh, non-removable | |
| Charging | Charging 10W Reverse charging 5W | |