vivo Y91 vs vivo Y15a
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| PHONES | ||
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| Phone Names | vivo Y91 | vivo Y15a |
| Network | ||
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 850 / 900 / 2100 | HSDPA 850 / 900 / 2100 |
| 4G bands | 1, 3, 5, 40, 41 | 1, 3, 5, 8, 28, 38, 40, 41 |
| Speed | HSPA 42.2/5.76 Mbps, LTE Cat5 150/75 Mbps | HSPA, LTE |
| Technology | GSM / HSPA / LTE | GSM / HSPA / LTE |
| Launch | ||
|---|---|---|
| Announced | 2018, November. Released 2018, November | 2021, November 15 |
| Status | Discontinued | Available. Released 2021, November 15 |
| Body | ||
|---|---|---|
| Build | Glass front, plastic back, plastic frame | Glass front, plastic back, plastic frame |
| Dimensions | 155.1 x 75.1 x 8.3 mm (6.11 x 2.96 x 0.33 in) | 164 x 75.2 x 8.3 mm (6.46 x 2.96 x 0.33 in) |
| SIM | Nano-SIM + Nano-SIM | Nano-SIM + Nano-SIM |
| Weight | 163.5 g (5.78 oz) | 179 g (6.31 oz) |
| Display | ||
|---|---|---|
| Resolution | 720 x 1520 pixels, 19:9 ratio (~270 ppi density) | 720 x 1600 pixels, 20:9 ratio (~270 ppi density) |
| Size | 6.22 inches, 96.6 cm2 (~82.9% screen-to-body ratio) | 6.51 inches, 102.3 cm2 (~83.0% screen-to-body ratio) |
| Type | IPS LCD | IPS LCD |
| Platform | ||
|---|---|---|
| CPU | Octa-core (4x1.95 GHz Cortex-A53 & 4x1.45 GHz Cortex A53) | Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) |
| Chipset | Qualcomm SDM439 Snapdragon 439 (12 nm) | Mediatek MT6765 Helio P35 (12 nm) |
| GPU | Adreno 505 | PowerVR GE8320 |
| OS | Android 8.1 (Oreo), Funtouch 4.5 | Android 11, Funtouch 11.1 |
| Memory | ||
|---|---|---|
| Card slot | microSDXC (dedicated slot) | microSDXC (dedicated slot) |
| Internal | 16GB 2GB RAM, 32GB 2GB RAM, 32GB 3GB RAM | 64GB 4GB RAM |
| eMMC 5.1 | eMMC 5.1 | |
| Main Camera | ||
|---|---|---|
| Dual | 13 MP, f/2.2, PDAF Auxiliary lens | 13 MP, f/2.2, 27mm (wide), AF Auxiliary lens |
| Features | LED flash, panorama | LED flash, panorama |
| Single | - | 8 MP, f/2.0 |
| Video | 1080p@30fps | 1080p@30fps |
| Selfie camera | ||
|---|---|---|
| Single | 8 MP, f/1.8 | 8 MP, f/2.0 |
| Video | 1080p@30fps | 1080p@30fps |
| Sound | ||
|---|---|---|
| 3.5mm jack | Yes | Yes |
| 35mm jack | Yes | Yes |
| Loudspeaker | Yes | Yes |
| Comms | ||
|---|---|---|
| Bluetooth | 4.2, A2DP, LE | 5.0, A2DP, LE |
| NFC | No | No |
| Positioning | GPS, GLONASS, BDS | GPS, GLONASS, GALILEO, BDS |
| Radio | FM radio | FM radio |
| USB | microUSB 2.0, OTG | microUSB 2.0, OTG |
| WLAN | Wi-Fi 802.11 b/g/n, Wi-Fi Direct | Wi-Fi 802.11 b/g/n, Wi-Fi Direct |
| Features | ||
|---|---|---|
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity, compass | Fingerprint (side-mounted), accelerometer, proximity, compass |
| Battery | ||
|---|---|---|
| Charging | - | 10W wired 5W reverse wired |
| Type | 4030 mAh, non-removable | 5000 mAh |
| Misc | ||
|---|---|---|
| Colors | Starry Black, Ocean Blue | Wave Green, Mystic Blue |
| Models | 1816, 1817, 1820, 1811, PD1818BF_EX | V2134 |
| Price | About 200 EUR | About 140 EUR |
| SAR | 1.28 W/kg (head) 0.61 W/kg (body) | - |