Based on this product's specifications, here are some alternatives and similar models
Electric Hot-Water Bottle Unold 86014
Summary description:
The Unold 86014 electric hot-water bottle has a power of 380 W and heats up in just 10 minutes. It features a pink plastic and polyester design, with dimensions of 270 mm width, 50 mm depth, and 185 mm height. The device operates on an AC input voltage of 220 - 240 V and frequency of 50 - 60 Hz. The packaging includes 1 piece, with a total weight of 185.64 g for paper and 6.7 g for plastic.