Dexcom G6 vs Dexcom G7
| Device | Wear time | Readings | Accuracy (MARD) | Alarms | Prescription | Price per sensor | Monthly cost | Cost to try | Cost, testing 4× a year | Yearly cost |
|---|---|---|---|---|---|---|---|---|---|---|
| Dexcom G6Dexcom | 10 days | every 5 min | 10%independent study | Yes | Required | Not published | Not published | Not published | Not published | Not published |
| Dexcom G7Dexcom | 10 days | every 5 min | 8.2%manufacturer study | Yes | Not required | £51.2510 daysexcludes VAT | £153.75per month | £51.2510 days | £205.00per year | £1,870.63per year |
Dexcom G6
Superseded. Choose it only if a pump or clinic you depend on still requires it — otherwise the G7 is more accurate and warms up far faster.
Dexcom G7
The sensor to pick if you want alarms, remote following, or pump integration. The gap between its pivotal accuracy figure and the independent one is the widest of any sensor we list, and worth knowing about.