Oppo A1k vs Vivo Y91i
A spec-by-spec comparison of the Oppo A1k and the Vivo Y91i, taken from their full specification sheets. Green marks the better value in each measured row.
Head to head
| Oppo A1k | Vivo Y91i |
|---|
| Price | Rs. 18,490 | Rs. 24,490 |
| Our rating | 6/10 | 5/10 |
| Battery | 4,000 mAh | 4,030 mAh |
| Wired charging | 10W | — |
| RAM (max) | 2 GB | 3 GB |
| Storage (max) | 256 GB | 32 GB |
| Screen size | 6.1 in | 6.22 in |
| Main camera | 8 MP | 13 MP |
| Weight (lower is lighter) | 170 g | 163 g |
| Released | Apr 2019 | Mar 2019 |
Summary: Oppo A1k is ahead on our rating, storage (max). Vivo Y91i is ahead on battery, ram (max), screen size, main camera.
★ Which should you buy? Vivo Y91i is the stronger overall pick on the measured specs. If budget matters more than the extra capability, Oppo A1k is the cheaper option.
Researched with AI assistance by infozme.com from manufacturer and retailer sources — see how we research & rate phones.
Display
| Oppo A1k | Vivo Y91i |
|---|
| Type | IPS LCD | IPS LCD |
| Size | 6.1 inches | 6.22 inches, 96.6 cm2 (~82.9% screen-to-body ratio) |
| Resolution | 720 x 1560 pixels, 19.5:9 ratio (~282 ppi density) | 720 x 1520 pixels, 19:9 ratio (~270 ppi density) |
| Protection | Corning Gorilla Glass 3 | Not specified |
| Features | Capacitive, Multi-touch, Scratch resistant | — |
Platform
| Oppo A1k | Vivo Y91i |
|---|
| OS | Android 9.0 (Pie), ColorOS 6 | Android 8.1 (Oreo), Funtouch OS 4.5 |
| Chipset | MediaTek Helio P22 (MT6762) | Mediatek MT6762 Helio P22 (12 nm) |
| CPU | Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) | Octa-core 2.0 GHz Cortex-A53 |
| GPU | PowerVR GE8320 | PowerVR GE8320 |
Memory
| Oppo A1k | Vivo Y91i |
|---|
| Card slot | microSDXC (dedicated slot), up to 256GB | microSDXC (dedicated slot) |
| Internal | 32GB 2GB RAM | 16GB 2GB RAM, 32GB 2GB RAM, 32GB 3GB RAM |
Main Camera
| Oppo A1k | Vivo Y91i |
|---|
| Single | 8 MP, f/2.2, 1/3.2", 1.4µm, AF | 13 MP, f/2.2, PDAF |
| Features | LED flash | LED flash, panorama |
| Video | 1080p@30fps | 1080p@30fps |
Selfie Camera
| Oppo A1k | Vivo Y91i |
|---|
| Single | 5 MP, f/2.0, 1/5.0", 1.12µm | 5 MP, f/1.8 |
| Video | 1080p@30fps (assumed, not explicitly stated in sources) | 1080p@30fps |
| Features | — | HDR |
Battery
| Oppo A1k | Vivo Y91i |
|---|
| Type | Li-Po 4000 mAh, non-removable | Li-Po 4030 mAh, non-removable |
| Charging | 10W wired | Standard charging |
Body
| Oppo A1k | Vivo Y91i |
|---|
| Dimensions | 154.5 x 73.8 x 8.4 mm (6.08 x 2.91 x 0.33 in) | 155.1 x 75.1 x 8.3 mm (6.11 x 2.96 x 0.33 in) |
| Weight | 170 g (6.00 oz) | 163 g (5.75 oz) |
| Build | Plastic body | Glass front, plastic back, plastic frame |
| SIM | Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) |
Comms
| Oppo A1k | Vivo Y91i |
|---|
| WLAN | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 b/g/n, Wi-Fi Direct |
| Bluetooth | 4.2, A2DP, LE | 5.0, A2DP, LE |
| Positioning | GPS, GLONASS, BDS | GPS, GLONASS, BDS |
| USB | microUSB 2.0, OTG | microUSB 2.0, OTG |
| Radio | FM radio | FM radio |
| NFC | — | No |
Launch
| Oppo A1k | Vivo Y91i |
|---|
| Announced | 2019, April | March 2019 |
| Status | Released | Available. Released March 2019 |
Frequently asked questions
Which has the better battery, Oppo A1k or Vivo Y91i?
Vivo Y91i — 4,000 mAh for the Oppo A1k versus 4,030 mAh for the Vivo Y91i.
Which has more RAM, Oppo A1k or Vivo Y91i?
Vivo Y91i — 2 GB for the Oppo A1k versus 3 GB for the Vivo Y91i.
Which is lighter, Oppo A1k or Vivo Y91i?
Vivo Y91i — 170 g for the Oppo A1k versus 163 g for the Vivo Y91i.
Which is newer, Oppo A1k or Vivo Y91i?
Oppo A1k — Apr 2019 for the Oppo A1k versus Mar 2019 for the Vivo Y91i.
Is the Oppo A1k or the Vivo Y91i rated higher?
We rate the Oppo A1k 6/10 and the Vivo Y91i 5/10.
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