Thought it would be useful to start a topic looking at the pricing of the various CGM and GM options out there. Feel free to add others as they come up. This is solely for stand alone systems. Those with the Animas Vibe or Medtronic pumps, for example, can add their own posts with the TCO detailed. So, what are the costs? Dexcom G4 (available direct from Dexcom): Sensor Pack (4 sensors): £205 Replacement Transmitter: £260 Receiver Kit: £350 Lifetime of sensor: Est. 4 weeks Lifetime of Transmitter: Est 12-14 months First year cost assuming 1 sensor lasts for a month: £1170 Second year cost (including replacement transmitter): £875 Total Two Year cost: £2045 Dexcom G5 (available direct from Dexcom): Sensor Pack (4 sensors): £205 Replacement Transmitter: £200 Receiver Kit: £275 Lifetime of sensor: Est. 4 weeks Lifetime of Transmitter: 3 months First year cost assuming 1 sensor lasts for a month: £1690 Second year cost (including replacement transmitters): £1415 Total Two Year cost: £3105 Abbott Freestyle Libre: Start up kit: £138 Sensors: £48 per sensor Replacement reader (if you lose/break the original): £48 Lifetime of Sensor: 14 days First year cost: £1290 Second year cost: £1248 Total Two year cost: £2538 Abbott Freestyle Navigator CGM: System Kit (includes transmitter, receiver, skins and cables): £950 Sensors (6 sensors): £288 - if purchased in bulk, 18 per time, 10% discount applies Replacement Transmitter: £400 Lifetime of transmitter: 1 year Lifetime of sensor: 5 days First year cost (assuming sensors bought on monthly basis): £4694 First year cost if able to afford bulk buying: £4060 Second year cost: £3856 Second year cost if able to afford bulk buying: £3510 Total Two year cost (assuming no bulk discounts): £8550 Obviously, having a pump with the built in CGM capability vastly reduces the initial start-up costs on the Dexcom. Both the Dexcom and the Abbott Navigator are true CGM and provide alerting for blood glucose level variation, which isn't something that can be achieved with the Freestyle Libre. The way that Abbott charge for the Libre allows for a much easier spread of the cost over the annualised payment period, which makes it significantly more affordable. It also works out 50% cheaper in the first year, however, over a two year period, the difference between the Libre and Dexcom works out at less than 10%. If Advanced Therapeutics offer free postage, this difference works out to be even lower. To me, the Abbott Navigator doesn't get a look in due to the cost of the product for no additional benefit.