{"id":18651,"date":"2026-10-19T06:01:17","date_gmt":"2026-10-19T05:01:17","guid":{"rendered":"https:\/\/blog.fourthfrontier.com\/uk\/?p=18651"},"modified":"2026-10-22T06:47:06","modified_gmt":"2026-10-22T05:47:06","slug":"frontier-x3-is-here-is-it-time-to-upgrade-your-x2","status":"publish","type":"post","link":"https:\/\/blog.fourthfrontier.com\/uk\/frontier-x3-is-here-is-it-time-to-upgrade-your-x2\/","title":{"rendered":"Frontier X3 Is Here: Is It Time to Upgrade Your X2?"},"content":{"rendered":"<style>\n  .flex-center {\n    display: flex;\n    justify-content: center;\n    margin: 40px 0;\n  }\n  .flex-center button,\n  .btn-blog {\n    background: #33db80;\n    color: #1d3e45;\n    padding: 15px 25px;\n    border-radius: 43px;\n    border: none;\n    cursor: pointer;\n    font-weight: 600;\n    min-width: 220px;\n    font-size: 18px;\n    transition: opacity 0.3s ease;\n  }\n  .flex-center button:hover {\n    opacity: 0.9;\n  }\n  .flex-center a {\n    text-decoration: none;\n  }\n<\/style>\n<p>Frontier X2 has been helping you track your heart health and recovery, session after session. But we kept asking ourselves how we could make that experience even better, so that you can train consistently with minimal interruptions.<\/p>\n<p>And that&#8217;s how Frontier X3 was born: a device so light you barely feel it on your chest, a battery that keeps going, and heart insights precise enough for you to train with confidence.<\/p>\n<p>Let&#8217;s explore what has actually changed in X3 with respect to <a href=\"https:\/\/uk.fourthfrontier.com\/products\/frontier-x\">Frontier X2<\/a> and whether you should make a switch or not.<\/p>\n<h2><strong>Frontier X3: Built for Uninterrupted Training and Heart Insights<\/strong><\/h2>\n<p>Frontier X3 is the next generation of the Frontier chest-worn heart monitor, designed to help you understand how your body responds to training, effort and recovery backed by the precision of continuous ECG. <\/p>\n<p>Just like the previous generation, it&#8217;s worn against the chest, where your heart&#8217;s signals are strongest. That&#8217;s why it is capable of giving accurate heart insights, instead of an estimate from your wrist.<\/p>\n<div class=\"flex-center\">\n  <a href=\"https:\/\/uk.fourthfrontier.com\/products\/frontier-x3\" target=\"_blank\" rel=\"noopener\"><br \/>\n    <button class=\"btn-blog\">Explore Frontier X3<\/button><br \/>\n  <\/a>\n<\/div>\n<h3><strong>What Changes in Frontier X3?<\/strong><\/h3>\n<p>Here are the new capabilities brought by Frontier X3:<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-20438\" src=\"https:\/\/blog.fourthfrontier.com\/wp-content\/uploads\/2026\/10\/Blog-3-1-scaled.png\" alt=\"Frontier X3 new capabilities and stats\" style=\"width: 100%; height: auto; display: block; margin: 20px 0;\" \/><\/p>\n<h4><strong>Up to 4 Months of Battery Life<\/strong><\/h4>\n<p>With Frontier X3, you can spend less time charging and more time recording and this has been one of the biggest upgrades.<\/p>\n<p>Get up to 4 months of battery life with typical use of around one hour of recording per day. If you&#8217;re recording continuously, Frontier X3 can record for up to 14 days on a single charge.<\/p>\n<p>That&#8217;s a significant difference (14x!!!) when you&#8217;re tracking workouts regularly, travelling, or simply don&#8217;t want another device to charge every night.<\/p>\n<h4><strong>Lighter Than Ever<\/strong><\/h4>\n<p>At approximately 23 g, Frontier X3 is 10% lighter than the previous generation, making it more comfortable to wear through workouts and during sleep.<\/p>\n<p>Because it&#8217;s designed to stay against your chest while you train and recover, even a small reduction in weight can make a difference to everyday wearability.<\/p>\n<h4><strong>Fully Charged in Half the Time<\/strong><\/h4>\n<p>Frontier X3 replaces the previous generation&#8217;s Micro USB connection with USB-C quick charging.<\/p>\n<p>A full charge takes approximately 1 hour, compared with around 2 hours for the previous generation, giving you a faster way to get back to recording.<\/p>\n<h4><strong>Connect It to the Devices You Already Use<\/strong><\/h4>\n<p>Frontier X3 upgrades to Bluetooth 6.0 for connectivity with devices and platforms including Apple Watch, Garmin, Peloton, and Zwift. Connect it to the Frontier X app and up to two external devices simultaneously, while keeping your Frontier data synced across the app and web dashboard.<\/p>\n<h4><strong>Powerful Tracking, With No Compromise<\/strong><\/h4>\n<p>Frontier X3 comes with the same strong tracking capabilities as its previous generation, including heart rate, HRV, strain, breathing rate, training load, body shock, cadence, and more. <\/p>\n<p>You get continuous ECG-based data and customizable vibration alerts for heart rate, breathing rate, and strain, along with Zone 2\u20135 Quick Alerts.<\/p>\n<p>You can also see your ECG data alongside GPS route maps to understand cardiac response across terrain, pace, and effort.<\/p>\n<p>The result? The tracking depth you expect from Frontier, with no compromise on the quality of your training data.<\/p>\n<p>The upgrade isn&#8217;t about losing what already works; it&#8217;s about getting the Frontier tracking you rely on in a lighter, longer-lasting, more capable device.<\/p>\n<div class=\"flex-center\">\n  <a href=\"https:\/\/uk.fourthfrontier.com\/products\/frontier-x3#shopify-section-template--25736797389179__features\" target=\"_blank\" rel=\"noopener\"><br \/>\n    <button class=\"btn-blog\">Explore all features <\/button><br \/>\n  <\/a>\n<\/div>\n<h2><strong>Frontier X2 vs Frontier X3: Side-by-side Comparison<\/strong><\/h2>\n<p>You already know what X2 does well. Here&#8217;s how it compares with X3:<\/p>\n<div style=\"width: 100%; max-width: 100vw; overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 20px 0; border: 1px solid transparent;\">\n<table style=\"width: 100%; min-width: 650px; border-collapse: collapse;\">\n<thead>\n<tr>\n<th style=\"padding: 12px 10px; font-size: 14px; text-align: left;\">Feature<\/th>\n<th class=\"x3-column\" style=\"padding: 12px 10px; font-size: 14px; text-align: left;\">Frontier X3<\/th>\n<th style=\"padding: 12px 10px; font-size: 14px; text-align: left;\">Frontier X2<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 12px 10px; font-size: 14px;\">Battery life<\/td>\n<td class=\"x3-column x3-highlight\" style=\"padding: 12px 10px; font-size: 14px;\">~4 months at ~1 hr\/day usage \/<br \/>Up to 14 days on continuous usage<\/td>\n<td style=\"padding: 12px 10px; font-size: 14px;\">~14 days at ~1 hr\/day usage \/<br \/>Up to 24 hours on continuous usage<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px 10px; font-size: 14px;\">Weight<\/td>\n<td class=\"x3-column x3-highlight\" style=\"padding: 12px 10px; font-size: 14px;\">~23 g &#8211; 10% lighter<\/td>\n<td style=\"padding: 12px 10px; font-size: 14px;\">25 g<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px 10px; font-size: 14px;\">Charging<\/td>\n<td class=\"x3-column x3-highlight\" style=\"padding: 12px 10px; font-size: 14px;\">USB-C quick charging<\/td>\n<td style=\"padding: 12px 10px; font-size: 14px;\">Micro USB<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px 10px; font-size: 14px;\">Charging Duration<\/td>\n<td class=\"x3-column x3-highlight\" style=\"padding: 12px 10px; font-size: 14px;\">1 hour (50% less)<\/td>\n<td style=\"padding: 12px 10px; font-size: 14px;\">2 hours<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px 10px; font-size: 14px;\">Bluetooth<\/td>\n<td class=\"x3-column x3-highlight\" style=\"padding: 12px 10px; font-size: 14px;\">Bluetooth 6.0<\/td>\n<td style=\"padding: 12px 10px; font-size: 14px;\">BLE 5.2<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px 10px; font-size: 14px;\">Display<\/td>\n<td class=\"x3-column x3-highlight\" style=\"padding: 12px 10px; font-size: 14px;\">Distraction-free, LED only display<\/td>\n<td style=\"padding: 12px 10px; font-size: 14px;\">On-device display<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px 10px; font-size: 14px;\">Live Zone based route map<\/td>\n<td class=\"x3-column x3-highlight\" style=\"padding: 12px 10px; font-size: 14px;\">Yes<\/td>\n<td style=\"padding: 12px 10px; font-size: 14px;\">No<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px 10px; font-size: 14px;\">ECG During Exercise<\/td>\n<td class=\"x3-column x3-highlight\" style=\"padding: 12px 10px; font-size: 14px;\">Yes<\/td>\n<td style=\"padding: 12px 10px; font-size: 14px;\">Yes<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3> <strong>Have Questions?<\/strong><\/h3>\n<p><a href=\"https:\/\/fourthfrontier.com\/pages\/get-demo\" target=\"_blank\"><br \/>\n<img decoding=\"async\" class=\"alignnone size-full wp-image-20438\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0125\/1498\/4026\/files\/FX3_blog_Talk_to_our_expert.png?v=1791288207\" alt=\"Frontier X3 new capabilities and stats\" style=\"width: 100%; height: auto; display: block; margin: 20px 0;\"><br \/>\n<\/a><\/p>\n<p>This keeps Frontier X3 subtly highlighted with the light green background, while the actual X3 advantages are bolded.<\/p>\n<h3><strong>Who Should Upgrade From Frontier X2 to X3?<\/strong><\/h3>\n<p>You should consider upgrading if:<\/p>\n<ul>\n<li>You don\u2019t want to charge your device every few days. Going from ~14 days to up to 4 months on typical use is the single biggest quality-of-life change in Frontier X3.<\/li>\n<li>You train continuously for multi-day events or long expeditions, where Frontier X3&#8217;s 14-day continuous run time gives you more runway than X2&#8217;s.<\/li>\n<li>You want a lighter device against your chest, especially over long sessions.<\/li>\n<li>You&#8217;ve been reaching for a micro-USB cable that&#8217;s increasingly hard to find, and want USB-C like the rest of your gear.<\/li>\n<li>You don&#8217;t want a screen pulling your focus mid-workout. Frontier X3 replaces the on-device display with a single LED. Battery, memory, and connection status will now be shown in the Frontier X app.<\/li>\n<\/ul>\n<p><a href=\"https:\/\/uk.fourthfrontier.com\/cart\/56495059992955:1?discount=launch30\" target=\"_blank\"><br \/>\n<img decoding=\"async\" class=\"alignnone size-full wp-image-20438\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0125\/1498\/4026\/files\/FX3_blog_cta.png?v=1791179320\" alt=\"Frontier X3 new capabilities and stats\" style=\"width: 100%; height: auto; display: block; margin: 20px 0;\" \/><br \/>\n<\/a><\/p>\n<h2><strong>Frontier X3 vs Smart Watch vs Smart Ring<\/strong><\/h2>\n<p>Frontier X3 uses chest-based ECG technology, not the optical sensors found in wrist and finger wearables. Here&#8217;s how it compares with the other wearables across the metrics that actually matter:<\/p>\n<div style=\"width: 100%; max-width: 100vw; overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 20px 0; border: 1px solid transparent;\">\n<table style=\"width: 100%; min-width: 650px; border-collapse: collapse;\">\n<thead>\n<tr>\n<th style=\"padding: 12px 10px; font-size: 14px; text-align: left;\">Features<\/th>\n<th class=\"frontier-column\" style=\"padding: 12px 10px; font-size: 14px; text-align: left;\">FRONTIER X3<\/th>\n<th style=\"padding: 12px 10px; font-size: 14px; text-align: left;\">Smart Watch<\/th>\n<th style=\"padding: 12px 10px; font-size: 14px; text-align: left;\">Smart Ring<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 12px 10px; font-size: 14px;\">Core Technology<\/td>\n<td class=\"frontier-column highlight\" style=\"padding: 12px 10px; font-size: 14px;\">Chest-based ECG technology<\/td>\n<td style=\"padding: 12px 10px; font-size: 14px;\">Optical PPG (wrist)<\/td>\n<td style=\"padding: 12px 10px; font-size: 14px;\">Optical PPG (finger)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px 10px; font-size: 14px;\">Accuracy<\/td>\n<td class=\"frontier-column highlight\" style=\"padding: 12px 10px; font-size: 14px;\">Highest<\/td>\n<td style=\"padding: 12px 10px; font-size: 14px;\">Inconsistent<\/td>\n<td style=\"padding: 12px 10px; font-size: 14px;\">Inconsistent<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px 10px; font-size: 14px;\">HRV<\/td>\n<td class=\"frontier-column check\" style=\"padding: 12px 10px; font-size: 14px;\">\u2713<\/td>\n<td class=\"check\" style=\"padding: 12px 10px; font-size: 14px;\">\u2713<\/td>\n<td class=\"check\" style=\"padding: 12px 10px; font-size: 14px;\">\u2713<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px 10px; font-size: 14px;\">Real-Time Vibration Alerts<\/td>\n<td class=\"frontier-column check\" style=\"padding: 12px 10px; font-size: 14px;\">\u2713<\/td>\n<td class=\"check\" style=\"padding: 12px 10px; font-size: 14px;\">\u2713<\/td>\n<td class=\"cross\" style=\"padding: 12px 10px; font-size: 14px;\">\u00d7<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px 10px; font-size: 14px;\">Cardiac Age Trends<\/td>\n<td class=\"frontier-column check\" style=\"padding: 12px 10px; font-size: 14px;\">\u2713<\/td>\n<td class=\"cross\" style=\"padding: 12px 10px; font-size: 14px;\">\u00d7<\/td>\n<td class=\"check\" style=\"padding: 12px 10px; font-size: 14px;\">\u2713<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px 10px; font-size: 14px;\">Body Shock<\/td>\n<td class=\"frontier-column check\" style=\"padding: 12px 10px; font-size: 14px;\">\u2713<\/td>\n<td class=\"cross\" style=\"padding: 12px 10px; font-size: 14px;\">\u00d7<\/td>\n<td class=\"cross\" style=\"padding: 12px 10px; font-size: 14px;\">\u00d7<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px 10px; font-size: 14px;\">VT Zones<\/td>\n<td class=\"frontier-column check\" style=\"padding: 12px 10px; font-size: 14px;\">\u2713<\/td>\n<td class=\"cross\" style=\"padding: 12px 10px; font-size: 14px;\">\u00d7<\/td>\n<td class=\"cross\" style=\"padding: 12px 10px; font-size: 14px;\">\u00d7<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px 10px; font-size: 14px;\">Strain Monitoring<\/td>\n<td class=\"frontier-column check\" style=\"padding: 12px 10px; font-size: 14px;\">\u2713<\/td>\n<td class=\"cross\" style=\"padding: 12px 10px; font-size: 14px;\">\u00d7<\/td>\n<td class=\"cross\" style=\"padding: 12px 10px; font-size: 14px;\">\u00d7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>Better technology isn&#8217;t about adding more. It&#8217;s about removing what gets in the way. A device that&#8217;s lighter and more comfortable to wear, a battery that keeps going, and heart insights you can rely on to train with confidence. That&#8217;s what Frontier X3 is built to do.<\/p>\n<p>It retains the powerful tracking capabilities that make Frontier valuable for training, recovery, and understanding how your body responds to exercise. You get the Frontier experience you already trust, made simpler and easier to live with, so you can spend less time thinking about your device and more time focusing on your training.<\/p>\n<div class=\"flex-center\">\n  <a href=\"https:\/\/uk.fourthfrontier.com\/products\/frontier-x3\" target=\"_blank\" rel=\"noopener\"><br \/>\n    <button class=\"btn-blog\">Get your Frontier X3<\/button><br \/>\n  <\/a>\n<\/div>\n<h2><strong>Frequently Asked Questions<\/strong><\/h2>\n<p><b>Why does Frontier X3 measure from the chest instead of the wrist?<\/b><br \/>\nFrontier X3 uses chest-based ECG technology to measure the heart&#8217;s electrical signal directly. Chest-based measurement gives a more reliable signal during high-intensity workouts, unlike wrist-based optical sensors, which can be affected by movement, sweat and changes in skin contact.<\/p>\n<p><b>How long does Frontier X3 take to charge?<\/b><br \/>\nEquipped with <b>USB-C fast charging<\/b>, the Frontier X3 reaches a <b>full charge in approximately 1 hour<\/b>\u2014charging twice as fast as the Frontier X2.<\/p>\n<p><b>What activities can I track with Frontier X3?<\/b><br \/>\nFrontier X3 supports <b>20+ activities<\/b>, from running and cycling to rowing, hiking, and indoor workouts. Worn on the chest, it captures heart and performance data even during high-intensity training.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Frontier X2 has been helping you track your heart health and recovery, session after session. But we kept asking ourselves how we could make that experience even better, so that you can train consistently with minimal interruptions. And that&#8217;s how [&hellip;]<\/p>\n","protected":false},"author":17,"featured_media":18653,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_yoast_wpseo_meta-robots-noindex":"","_yoast_wpseo_meta-robots-nofollow":"","_yoast_wpseo_canonical":"","_yoast_wpseo_opengraph-title":"","_yoast_wpseo_opengraph-description":"","_yoast_wpseo_opengraph-image":"","_yoast_wpseo_twitter-title":"","_yoast_wpseo_twitter-description":"","_yoast_wpseo_twitter-image":"","footnotes":""},"categories":[195,199],"tags":[513,413,401,535],"class_list":["post-18651","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-heart-health","category-products","tag-ecgmonitoring","tag-hearthealth","tag-heartrhythm","tag-longtermecg"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v19.6 (Yoast SEO v28.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Frontier X3 Is Here: Is It Time to Upgrade Your X2? - Heart Health Guides | Research Blogs on Heart Diseases | UK Fourth Frontier Blogs<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.fourthfrontier.com\/uk\/frontier-x3-is-here-is-it-time-to-upgrade-your-x2\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Frontier X3 Is Here: Is It Time to Upgrade Your X2?\" \/>\n<meta property=\"og:description\" content=\"Frontier X2 has been helping you track your heart health and recovery, session after session. 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