Award-winning slim Pixel phone casse and Leather Wallet Smartcases.Ā Ā All cases and Leather Wallet Smartcases include an embedded EnviroSensor. Protect your Pixel with a slim, durable phone case, or purchase a luxurious USA Nappa leather wallet.Ā Add more battery, more memory, more sensors, more . . . .Ā . by adding one or more Smartblades to your purchase.