Material: Metal grinders (especially aluminum) are durable and often preferred, but plastic grinders are more affordable. Wooden grinders can be stylish and eco-friendly but may not be as durable.
Size: Grinders come in different sizes. A larger grinder can handle more material at once, but a smaller one is more portable.
Number of Chambers: Basic grinders have a single chamber, but multi-chamber grinders can separate the ground material from kief.
Teeth Design: The shape and arrangement of the teeth can affect how finely the herbs are ground.
Ease of Use and Cleaning: Look for a grinder that's easy to clean and use, as this can make a big difference in the long run.