The equipment is a very important part of winter hiking to ensure you have a successful and safe experience. First, get a backpack suitable for your favorite type of hike, whether long or short. Then, carefully fill your backpack to have all the essentials needed once on the trails.
For your safety and to move better on snowy trails, you will need crampons or snowshoes, as well as hiking poles. Find out about the trail conditions and regulations once on site, as this will determine whether you need snowshoes or crampons. In any case, it is essential to carry a pair of hiking crampons in your bag at all times.
Don't forget to bring an external battery (portable charger) to recharge your phone. With the cold, your phone's battery may discharge more quickly. Always carry a headlamp in case of darkness, even if you think you have time to finish your hike before nightfall. Add hand warmers and foot warmers to your bag. They don't take up much space and you'll be glad to have them on hand if you ever get cold in your extremities.
If you want to admire the scenery or take a snack break, get a small foam hiking seat. You can sit down at any time without getting a cold bottom.
Finally, for your safety, carry a first aid kit, a small multi-tool, a lighter and a whistle.