Ace Teah via Amazon offers a its Ace Teah Waterproof Universal Phone Case 3-Pack
for $10.99. Coupon code " 8PEAQKOT" drops it to $7.99
. Plus, Prime members bag free shipping
. That's the lowest price we could find by $5. These cases fit phones up to 5.7" and are IPX8-certified waterproof up to 49 feet. Deal ends December 16.