The Endura S1 is a refillable, rechargeable pod device from Innokin. Similar to the Aspire R1, the Endura S1 is a semi-disposable vape, which makes it convenient and easy to use, yet more environmentally friendly than an actual disposable. With any 10ml bottle typically providing 3000 puffs (depending on method of use), and the kit itself capable of up to 7000 puffs, this a great system to save money, versus disposable vape kits.