Spesifikasi HP vivo Y91
- Layar: 6.22 inci IPS LCD, 520 x 720 pixel HD+ (~270 ppi)
- Chipset: Qualcomm SDM439 Snapdragon 439 (12 nm)
- CPU: Octa-core (4x1.95 GHz Cortex-A53 & 4x1.45 GHz Cortex A53)
- GPU: Adreno 505
- OS: Android 8.1 (Oreo); Funtouch 4.5
- RAM: 2 GB
- Memori internal: 16GB/32GB
- Ukuran HP: 155.1 x 75.1 x 8.3 mm (6.11 x 2.96 x 0.33 in)
- Berat HP: 163.5 g