Onida Dexcom G7 Over Patches 20PCS Waterproof CGM Covers for G7 & Stelo

Why it's worth it

A woven-fabric overpatch cut for the Dexcom G7 and Stelo, with a solid no-hole center that leaves the sensor untouched. Twenty in a pack, which is a month of G7 changes, or most of a year if you're only patching the sensors that need it.

The G7's own adhesive is the weak link in an otherwise strong system, and the overpatch Dexcom includes has a reputation to match. This is the one owners keep coming back to instead. It's woven fabric rather than film, which flexes with your arm rather than fighting it, and the edges don't curl the way thin plastic does.

The dual fit is the reason to pick this one. It's cut for the G7 and for Stelo, so a household running a prescription sensor on one arm and an over-the-counter one on another buys a single box. That's genuinely useful. It also means you can switch systems without a drawer full of orphaned patches.

From our review of 6 continuous glucose monitors and sensor covers, by Eleanor Vance, Health & Beauty Editor

What we like

• +The G7's own adhesive is the weak link in an otherwise strong system, and the overpatch Dexcom includes has a reputation to match
• +The dual fit is the reason to pick this one
• +Water is where overpatches usually fail, and this is where owner feedback is most consistent
• +Removal is thought through too

What to know

• –Fabric is thicker than film
• –The adhesive is strong enough to be a problem for sensitive skin