You Can Charge Your iPhone 6s Wirelessly, But Is It Worth It?
Your iPhone 6S can already support wireless charging
Wireless Charger, 18W 3 in 1 Charging Station for iPhone 15/14/13/12/11/Pro/XS/XS Max/XR/X, Fast Wireless Charging Dock Foldable for Apple Watch 8/7/6/SE/5/4/3/2, AirPods 3/2/Pro with Adapter(Green) - Walmart.com
QI WIRELESS CHARGER RECEIVER ADAPTER STICKER FOR APPLE iPHONE 6 6s 7 P – Nakedcellphone