{"id":632135,"date":"2025-05-01T16:22:45","date_gmt":"2025-05-01T20:22:45","guid":{"rendered":"https:\/\/www.singlecare.com\/blog\/?p=632135"},"modified":"2026-01-28T14:12:24","modified_gmt":"2026-01-28T19:12:24","slug":"freestyle-libre-2-vs-3","status":"publish","type":"post","link":"https:\/\/www.singlecare.com\/blog\/freestyle-libre-2-vs-3\/","title":{"rendered":"Freestyle Libre 2 vs. Freestyle Libre 3: Differences, similiarties, and costs"},"content":{"rendered":"

FreeStyle Libre<\/span> 2<\/span><\/a> and <\/span>FreeStyle Libre<\/span> 3<\/span><\/a> are two versions of <\/span>continuous glucose monitors<\/span> (CGMs) which are considered <\/span>durable medical equipment<\/span>. The <\/span>trade name<\/span> is owned by <\/span>Abbott Diabetes Care<\/span>, a part of <\/span>Abbott Laboratories<\/span>.\u00a0<\/span><\/p>\n

These <\/span>personal CGM systems<\/span> monitor the <\/span>blood sugar level<\/span> of <\/span>eligible patients<\/span> with <\/span>diabetes<\/span><\/a>, including <\/span>gestational diabetes<\/span>. The <\/span>device<\/span> works by sending <\/span>real-time<\/span> readings of those <\/span>glucose levels<\/span> to users’ <\/span>mobile devices<\/span> through a <\/span>smartphone app<\/span>. (In other words, no more finger sticks needed to measuring <\/span>glucose levels<\/span>.)\u00a0<\/span><\/p>\n

While the two versions have some similarities, they also have some <\/span>core differences<\/span>.<\/span><\/p>\n

Main differences<\/b> between <\/b>FreeStyle Libre<\/b> 2 and 3<\/b><\/h2>\n

Use of the FreeStyle Libre<\/span> 2 and 3 is similar in several ways. For example, both <\/span>CGM devices<\/span> read <\/span>blood glucose levels<\/span> effectively, sound <\/span>alarms<\/span> within <\/span>minutes<\/span> when the level is too high or low, require a <\/span>60-minute warm-up<\/span>, have to be replaced with a <\/span>new sensor<\/span> every 14 <\/span>days<\/span>, and can be used by <\/span>young people<\/span> four years old or older.<\/span><\/p>\n

Those similarities are noted by healthcare professionals, too. \u201cPersonally, I have not seen much of a difference in preference with the <\/span>patients<\/span> that I have treated who have both,\u201d says Dr. Deepak Khanna, DO, an internist and family medicine physician at UPenn and the founder of dandRX.<\/span><\/p>\n

He notes there are some <\/span>differences<\/span> between the <\/span>FreeStyle Libre<\/span> 2<\/span><\/a> and <\/span>FreeStyle Libre<\/span> 3<\/span><\/a>, of course. For <\/span>starters<\/span>, the <\/span>benefits of the FreeStyle Libre<\/span> 3 include <\/span>advanced features<\/span> such as automatic <\/span>data<\/span> and better accuracy. Other <\/span>primary differences<\/span> relate to <\/span>size<\/span> and transmitter <\/span>range<\/span>.<\/span><\/p>\n

\u201cTo me, it\u2019s about convenience for the patient,\u201d Dr. Khanna continues. \u201cMy insulin pump <\/span>patients<\/span> love <\/span>Libre<\/span> 3 because it is automatic and makes their pump adjustments easier. For everyone else, it doesn\u2019t really matter 2 versus 3.\u201d<\/span><\/p>\n

See the table below for more <\/span>differences<\/span> and the <\/span>great benefits<\/span> mentioned by the <\/span>American Diabetes Association<\/span> (<\/span>ADA<\/span>), Dr. Khanna, and Dr. Akhil Shenoy, MD, an endocrinologist and medical advisor at Aeroflow <\/span>Diabetes<\/span>.<\/span><\/p>\n\n\n\n\n\n\n\n\n
Feature<\/span><\/td>\nFreeStyle Libre<\/span> 2<\/span><\/td>\nFreeStyle Libre<\/span> 3<\/span><\/td>\n<\/tr>\n
Size<\/span> & Design<\/span><\/td>\nLarger, thicker <\/span>sensor<\/span><\/td>\nSmallest CGM sensor<\/span><\/a>, so it\u2019s more discreet and comfortable, according to a 2022 <\/span>issue of <\/span>Clinical Diabetes<\/span><\/i><\/td>\n<\/tr>\n
Scan Requirement<\/span><\/td>\nRetrieving <\/span>blood sugar data<\/span> requires manual scanning at least every eight <\/span>hours<\/span> by holding a phone up to the <\/span>sensor<\/span><\/td>\nProvides <\/span>real-time intel<\/span> and <\/span>data<\/span> by sending automatic and <\/span>continuous glucose readings<\/span> to a <\/span>smartphone<\/span><\/td>\n<\/tr>\n
Transmitter <\/span>Range<\/span><\/td>\n1.5 inches\u00a0<\/span><\/td>\n33 <\/span>feet<\/span><\/td>\n<\/tr>\n
Accuracy<\/span><\/td>\nLess accurate\u00a0<\/span><\/td>\nMore accurate<\/span><\/td>\n<\/tr>\n
Battery type<\/span><\/td>\nSensor<\/span> has one silver oxide battery; <\/span>reader<\/span> has one rechargeable lithium-ion battery<\/span><\/td>\nSilver oxide<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

FreeStyle Libre<\/b> 2: Features, benefits, and cost<\/b><\/h2>\n

The <\/span>FreeStyle Libre<\/span> 2 is a bigger CGM. As mentioned, it retrieves <\/span>blood sugar data<\/span>, and to access that <\/span>data<\/span>, the user has to manually scan it with their <\/span>smartphone<\/span>. The 2’s transmitter <\/span>range<\/span> is about one and a half inches.\u00a0<\/span><\/p>\n

Research also says the <\/span>FreeStyle Libre <\/span>2 is less accurate than the FreeStyle Libre 3 but still accurate. According to a <\/span>2022 <\/span>study<\/span><\/a>, the <\/span>FreeStyle Libre<\/span> 2 positively impacts <\/span>blood sugar<\/span> levels and, therefore, <\/span>blood sugar control<\/span>.<\/span><\/p>\n

With a <\/span>SingleCare coupon<\/span><\/a> for <\/span>FreeStyle Libre<\/span> 2<\/span>, <\/span>people<\/span> can purchase it for as little as $143.13 at <\/span>retail pharmacies<\/span> and <\/span>online stores<\/span>. Regarding <\/span>health insurance<\/span>, most (but not all) <\/span>commercial plans<\/span> cover <\/span>FreeStyle Libre<\/span> 2. <\/span>Without insurance<\/span><\/a>, the two <\/span>sensors<\/span> cost $235.<\/span><\/p>\n

FreeStyle Libre<\/b> 3: Features, benefits, and cost<\/b><\/h2>\n

The 3 is the <\/span>newer FreeStyle Libre<\/span>. Compared to the 2, it\u2019s smaller (so less noticeable, if that\u2019s a concern), more accurate, and has an extended transmitter <\/span>range<\/span> of 33 <\/span>feet<\/span>. Rather than having to scan the sensor with a smartphone manually, the <\/span>sensor<\/span> consistently provides <\/span>blood sugar level<\/span> information to your phone in <\/span>real time<\/span>.<\/span><\/p>\n

With a <\/span>SingleCare savings coupon<\/span><\/a> for <\/span>FreeStyle Libre<\/span> 3<\/span>, <\/span>people<\/span> can purchase it for as little as $133.99. <\/span>Some insurance plans<\/span><\/a> cover <\/span>FreeStyle Libre<\/span> 3<\/span>. <\/span>Uninsured patients<\/span> will pay $235 for two <\/span>sensors<\/span>, which covers 28 <\/span>days<\/span> of <\/span>use<\/span>.\u00a0<\/span><\/p>\n

Dr. Shenoy shares his patients\u2019 take on the product. \u201cMany of my <\/span>patients<\/span>, particularly those motivated by the information, are empowered by CGMs, which has a large positive impact on <\/span>diabetes<\/span><\/a> care,\u201d he says. \u201cThis is particularly true with the new <\/span>Libre<\/span> 3 model, which offers greater convenience.\u201d<\/span><\/p>\n

FreeStyle Libre<\/b> 2 Plus and <\/b>FreeStyle Libre<\/b> 3 Plus<\/b><\/h2>\n

It’s important to note that both the <\/span>FreeStyle Libre<\/span> 2 and <\/span>FreeStyle Libre<\/span> 3 will be <\/span>discontinued on September 30, 2025<\/span><\/a>. At that point, the <\/span>FreeStyle Libre<\/span> 2 Plus and <\/span>FreeStyle Libre<\/span> 3 Plus will become available.\u00a0<\/span><\/p>\n

Their features and benefits include extended wear time, insulin pump compatibility, better patient reach (even 2-year-old kids can <\/span>use<\/span> them), and a more affordable cost.\u00a0<\/span><\/p>\n

Users<\/span> will need a <\/span>new prescription<\/span> for the Plus version. If you have further questions about that, contact a pharmacist or <\/span>healthcare provider<\/span>.<\/span><\/p>\n

If insurance doesn\u2019t cover the cost, <\/span>people<\/span> can buy the <\/span>sensor<\/span> for as low as $153.22 with a <\/span>SingleCare <\/span>FreeStyle Libre<\/span> 2 Plus <\/span>Sensor<\/span> coupon<\/span><\/a> or a <\/span>SingleCare <\/span>FreeStyle Libre<\/span> 3 Plus <\/span>Sensor<\/span> coupon<\/span><\/a>.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

FreeStyle Libre 2 and FreeStyle Libre 3 are two versions of continuous glucose monitors (CGMs) which are considered durable medical equipment. The trade name is owned by Abbott Diabetes Care, a part of Abbott Laboratories.\u00a0 These personal CGM systems monitor the blood sugar level of eligible patients with diabetes, including gestational diabetes. The device works […]<\/p>\n","protected":false},"author":87,"featured_media":632136,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[8029],"tags":[10298],"coauthors":[21001],"class_list":["post-632135","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-health-education","tag-diabetes","wpautop"],"acf":[],"yoast_head":"\nFreestyle Libre 2 vs. 3: Key differences & features explained<\/title>\n<meta name=\"description\" content=\"What are the differences between the Freestyle Libre 2 vs. 3? 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