Here are some features and considerations about these scales:

1. Design and Materials: As the name suggests, the primary material for the top surface of these scales is tempered glass. This glass is durable, easy to clean, and can support significant weight.
2. Digital Display: These scales have an LCD or LED display that shows the user’s weight. The display should be easy to read, possibly backlit for better visibility.
3. Units: Most digital scales allow users to toggle between different measurement units, such as kilograms, pounds, and sometimes stones.
4. Accuracy: Look for a scale that provides consistent and accurate readings. Small discrepancies are normal, but significant inconsistencies can be problematic.
5. Weight Capacity: Ensure the scale can handle the weight of the user. Most adult weighing scales can support anywhere from 150 kg to 200 kg (330 lbs to 440 lbs).
6. Platform Size: The scale should be broad and sturdy enough to comfortably stand on.
7. Power Source: Some scales operate on replaceable batteries, while others might use rechargeable batteries or even be charged via USB. Some models might use “step-on” technology, where the scale activates upon stepping on it and turns off after a period of inactivity to save battery.