Based on this product's specifications, here are some alternatives and similar models
Protective Boot Case Unitech EA520 — durable protection, lightweight design
Summary description:
Protective boot case designed for the Unitech EA520, offering durable protection with a lightweight design. This accessory shields the device from impacts, scratches and daily wear while maintaining easy handling and access to controls. Suitable for fieldwork, logistics and retail environments where mobile devices need added protection without significant bulk.