Based on this product's specifications, here are some alternatives and similar models
Grass trimmer Bosch GRT 18V-40 — cordless 18V battery-powered lightweight design
Summary description:
Cordless grass trimmer Bosch GRT 18V-40 powered by an 18V battery. Lightweight design for easy handling and maneuvering around lawns, edges and tight spots. Suitable for trimming grass and maintaining small to medium garden areas without a power cord. Offers portable, battery-operated convenience for quick maintenance and tidy results.