Finance and Business What is the best glucose meter reader? What is the best glucose meter reader? - Care Touch Blood Glucose Monitoring System. - FreeStyle Libre. - Dexcom G6. - Eversense. - Guardian Connect System. - Rite Aid TrueMetrix Meter. - Walgreen's TrueMetrix Bluetooth Blood Glucose Meter. What is the most painless glucose meter? glucoWISE® is envisioned to be a non-invasive, 100% pain-free device. Our unique sensor technology will allow you to monitor blood glucose levels multiple times without the need to pierce your skin.