jackois
Well-Known Member
This review almost 3 months after I cancelled my Dexcom G6 subscription.
Dexcom One is the cheapest of the 3 CGM devices that Dexcom supply. It's their competitor for the Freestyle Libre, and operates aroung the same price point.
The Dexcom One is basically the G6 with some of it's functionality removed, the abilty for someone to follow your readings remotely, and pump operation should you have a pump that can use it. The only other thing missing is the calibration ability for the sensor.
Having used it for 3 months, I've had one failure to deploy, where the sensor, although stuck to my stomach didn't release from the applicator. This was replaced by Dexcom within a couple of days and the old one returned for examination, post paid.
Having used the G6 for a couple of years, using the One was very similar, albeit with a new app developed for the One. Apply the sensor which sticks well, even with my love of overly long, hot showers. The app gives all the info you might need. Readings, trends and so on, customisable alert levels and alarm sounds. Quite deafening, you shouldn't sleep through a low with them.
In use, the One followed trends as well as the G6. It's accuracy is lacking due to the aforementioned removal of the calibration feature. I generally do a finger stick test daily to work out how far out the sensor is reading and then calculate the reading by adding or subtracting the difference. Current sensor for instance is reading 2.0Mmol above my fingerstick tests, but following the trend perfectly. Most of the sensors have been slightly out. One drifted to the point where it was constantly going into and out of alarm, which was a pain, and I ended up removing it a day early as the alarms were doing my head in. None of the sensors failed early.
As with the G6, there have been 'loss of signal' occasions, generally through the night, I suspect caused by sleeping on the sensor, which happened occasionally with the G6. Recovery seems to be sped up by re-starting the phone, rather than waiting as per the pop up alert. There was one app crash during the 3 months, sorted by re-installing the app and re-starting the sensor, luckily I'd kept the sensor and transmitter codes, which saved a call to Dexcom Support. I reported the app crash and that was followed up by Tech Support via the phone. Support have always been superb in my opinion. Very quick to respond and always able to help.
Ordering and delivery was quick, done online at the Dexcom website and delivered by DPD within a few days. Current price £299 for a 3 month supply of sensors and a transmitter.
To sum up... £50 a month cheaper than the G6 & G7. Easy to buy, quick delivery, easy to install and stick well. Trends work well. Check back on earlier readings by hovering over the points on the graph.
On the downside, as you can't calibrate the sensor via the app, you'll have to fingerstick more often as you'll have less trust other than trends which work well. The app, unlike the G6 version doesn't allow a landscape view which means on the 12 and 24 hour view it's difficult to isolate a particular reading.
I'll order another 3 month supply and see if the accuracy improves with use before deciding whether I'll need to shell out the extra for the G6. I'm unable to use the Libre as my skin is irritated by the adhesive.
Any questions or comments, please ask and I'll try to answer.
Dexcom One is the cheapest of the 3 CGM devices that Dexcom supply. It's their competitor for the Freestyle Libre, and operates aroung the same price point.
The Dexcom One is basically the G6 with some of it's functionality removed, the abilty for someone to follow your readings remotely, and pump operation should you have a pump that can use it. The only other thing missing is the calibration ability for the sensor.
Having used it for 3 months, I've had one failure to deploy, where the sensor, although stuck to my stomach didn't release from the applicator. This was replaced by Dexcom within a couple of days and the old one returned for examination, post paid.
Having used the G6 for a couple of years, using the One was very similar, albeit with a new app developed for the One. Apply the sensor which sticks well, even with my love of overly long, hot showers. The app gives all the info you might need. Readings, trends and so on, customisable alert levels and alarm sounds. Quite deafening, you shouldn't sleep through a low with them.
In use, the One followed trends as well as the G6. It's accuracy is lacking due to the aforementioned removal of the calibration feature. I generally do a finger stick test daily to work out how far out the sensor is reading and then calculate the reading by adding or subtracting the difference. Current sensor for instance is reading 2.0Mmol above my fingerstick tests, but following the trend perfectly. Most of the sensors have been slightly out. One drifted to the point where it was constantly going into and out of alarm, which was a pain, and I ended up removing it a day early as the alarms were doing my head in. None of the sensors failed early.
As with the G6, there have been 'loss of signal' occasions, generally through the night, I suspect caused by sleeping on the sensor, which happened occasionally with the G6. Recovery seems to be sped up by re-starting the phone, rather than waiting as per the pop up alert. There was one app crash during the 3 months, sorted by re-installing the app and re-starting the sensor, luckily I'd kept the sensor and transmitter codes, which saved a call to Dexcom Support. I reported the app crash and that was followed up by Tech Support via the phone. Support have always been superb in my opinion. Very quick to respond and always able to help.
Ordering and delivery was quick, done online at the Dexcom website and delivered by DPD within a few days. Current price £299 for a 3 month supply of sensors and a transmitter.
To sum up... £50 a month cheaper than the G6 & G7. Easy to buy, quick delivery, easy to install and stick well. Trends work well. Check back on earlier readings by hovering over the points on the graph.
On the downside, as you can't calibrate the sensor via the app, you'll have to fingerstick more often as you'll have less trust other than trends which work well. The app, unlike the G6 version doesn't allow a landscape view which means on the 12 and 24 hour view it's difficult to isolate a particular reading.
I'll order another 3 month supply and see if the accuracy improves with use before deciding whether I'll need to shell out the extra for the G6. I'm unable to use the Libre as my skin is irritated by the adhesive.
Any questions or comments, please ask and I'll try to answer.
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