Product Name: COMPATIBLE Vivo Y21S / Y21 (2021) Battery (B‑S1)
Compatible Models: Vivo Y21S, Vivo Y21 (2021)
Type: Internal Rechargeable Lithium‑Ion Battery
Function: Replaces degraded or faulty battery to restore battery life and performance
Installation: Internal repair (requires technician)
Condition: Compatible Replacement Part
Usage: Suitable for Vivo Y21S / Y21 (2021) battery replacement