22mm Compatible models: ForAmazfit GTR 4 For Amazfit GTR 3 For Amazfit GTR 3 Pro For Huami Amazfit GTR 2e For Huami Amazfit GTR 2 For Xiaomi Watch Color 2 For Xiaomi Watch Color For Huami Amazfit Stratos 3 For Huami Amazfit GTR 47mm For Huami Amazfit Stratos + / Amazfit pace 20mm Compatible models: For Amazfit GTS 4 For Amazfit GTS 4 mini For Amazfit Bip 3 For Amazfit Bip 3 Pro For Amazfit GTS 3 For Huami Amazfit GTS 2e For Huami Amazfit GTS 2 mini For Huami Amazfit Bip U For Huami Amazfit GTS 2 For Huami Amazfit GTR 42mm For Huami Amazfit Bip lite For Huami Amazfit Bip For Huami Amazfit GTS For Huami Amazfit Bip S Packing List : 1 * Strap (Does not include watch)