The Keystone Essential and Pro (second-generation) have made compromises in durability to be available at a more accessible price point, which mainly comes down to differences in body materials and accessories. However, we do offer accessories such as fireproof bags that can provide resistance to physical damage. In terms of hardware security and protections against hacking, we have not made any compromises with the Keystone Essential and Pro. The Pro also incorporates a fingerprint sensor for more discrete use in public. Pro comes with a rechargeable battery, while Essential comes with AAA battery support, but both battery options are available through accessories.