Wear OS gives the E4 a solid app ecosystem, helped by TAG Heuer’s extra software layer.
The app ecosystem is useful but not expansive. Reviewers mention ConnectIQ apps and data fields, while also noting that Garmin’s ecosystem feels more limited than watchOS or Wear OS.
Straps are generally high quality, comfortable, and secure.
Band quality is good, with soft silicone straps and positive comments about long-term wear and durability.
Battery life is respectable: usually around a full day, with up to roughly two days or a bit more in lighter-use scenarios on larger models.
Battery life is the biggest tradeoff. Some reviewers still found it good in normal use, but many say the brighter screen makes it noticeably weaker than the 265, especially with always-on display.
Reviewers explicitly state that blood oxygen measurement is not included.
The watch includes blood-oxygen-related health sensing, with reviewers mentioning a pulse oximeter and overnight blood-oxygen or saturation tracking as part of the health stack.
Bluetooth syncing is described as noticeably faster thanks to Bluetooth 5.0.
Bluetooth support is functional for phone-linked features and external sensor pairing, including Bluetooth and ANT+ accessory support.
Screen brightness stands out and helps the watch show off its faces.
Brightness is a standout strength, with multiple reviews describing the screen as one of Garmin’s brightest and easiest to read outdoors.
Build quality is a standout, with luxury-level finishing called out repeatedly.
Build quality feels premium for the line, with one review explicitly describing it as a high-quality watch.
The crown and pushers have a satisfying mechanical feel and make control easier.
Button controls are one of the watch’s practical strengths. Reviewers like the five-button layout and say it works reliably when touch is less convenient.
The watch does not handle calls on-device; incoming calls still push you back to the phone.
Call support is a useful upgrade rather than a must-have killer feature. Reviewers generally found wrist calls workable and clear enough when paired to a phone.
Calorie estimates are available, but reviewers note that weak heart-rate accuracy can make them less trustworthy.
The included stand or cradle is convenient and more polished than a basic puck.
Charging convenience is less impressive. Reviewers specifically wanted wireless charging and also called out the proprietary cable setup.
Charging speed is good rather than class-leading, with full charges commonly landing around 70 to 90 minutes.
Charging speed is fine in practice, with one long-term reviewer saying it can top up from empty to full during a shower.
Guided and animated workouts are a consistent strength across reviews.
Coaching features are well developed, especially for runners and triathletes. Garmin Coach plans, daily suggestions, and structured guidance were consistently praised.
Comfort is generally excellent for daily wear, though some straps can get sweaty.
Comfort is a major plus. Across sizes and use cases, reviewers repeatedly say the watch is easy to wear for workouts, daily use, and even overnight.
The companion app is attractive and useful for faces and fitness data, though setup can still involve multiple apps depending on platform.
Garmin Connect is usually viewed positively for depth and data richness, though the new subscription layer is a recurring annoyance in the reviews.
Google Pay support is straightforward and works as expected.
NFC payments are available, giving the watch a useful everyday smartwatch feature beyond training tools.
The watch works with both Android and iPhone, but Android gets the fuller experience.
Cross-platform support looks good overall, with smooth iPhone use noted in one review and phone-assistant access highlighted in another.
Customization is a clear plus, with interchangeable straps and plenty of face or theme options.
Customization is a strength. Reviews mention editable glance folders, assignable shortcuts, and flexible watch-face or data layout changes.
The display is consistently praised as sharp, vibrant, and premium-looking.
Display quality is excellent. Reviewers repeatedly call the AMOLED screen brighter, sharper, clearer, and more vivid than the previous generation.
Scratch-resistant ceramic and sapphire, plus robust construction, support a durable feel.
Durability impressions are positive. Reviewers mention scratch resistance, pristine condition after use, and very little visible wear over time.
Reviewers explicitly state that ECG is not available.
ECG is a clear miss. Reviewers repeatedly call out that the Forerunner 570 lacks ECG despite using Garmin’s newer sensor hardware.
Fit is helped by adjustable clasps and the choice of a smaller 42mm size.
Fit is excellent when sized correctly, with reviewers describing the watch as secure, flush on the wrist, and almost second-skin-like.
The watch is acceptable for casual tracking, but several reviews say it falls short for serious fitness use and can misread workout data.
Fitness tracking is broadly praised, with one review calling the core tracking accuracy second to none for the watch’s main sports focus.
GPS starts quickly and is usable, but accuracy is only decent overall and some runs were over-reported.
GPS accuracy is one of the strongest areas. Across city runs, trails, and side-by-side tests, reviews consistently describe tracking as excellent, flawless, or near flawless.
Broader health tracking is not a strength here, mainly because core sensor outputs—especially heart rate—can run high or low versus reference devices.
Health stats are generally described as good, with one data-driven review calling overall stat accuracy solid and another saying heart-rate and sleep-stage tracking are pretty good.
Heart-rate accuracy is mixed at best: one review called it fine, but several others reported notable deviations versus chest straps, Apple Watch, Garmin, or Oura.
Heart-rate tracking is a major strength. Multiple reviewers say it stays close to chest straps, performs well in intervals, and is one of Garmin’s better recent sensors.
LTE is not supported.
Materials such as titanium, ceramic, and sapphire give the watch a premium feel.
Material choices are a step up from older mid-range Forerunners, especially the aluminum bezel and sturdier-feeling case construction.
Navigation with the crown and buttons is intuitive and efficient.
Menu navigation is easy to learn and generally straightforward, helped by the refreshed layout and button-plus-touch design.
Music playback controls work well in the supported review.
Music controls are present and usable, including the ability to check what is playing from services like Spotify.
The watch supports downloading songs and playlists for phone-free listening.
Onboard music storage is useful but not generous. Reviews note 8GB of storage and MP3 support, with some calling the capacity a bit stingy.
Wear OS 2 drew criticism for feeling old or disjointed, while Wear OS 3 noticeably improved the experience.
The overall software experience is modern and capable. Reviewers describe it as faster, more polished, and close in feel to Garmin’s higher-end models.
Outdoor readability is strong, including in bright sunlight.
Outdoor visibility is excellent, with reviewers saying the display remains easy to read in bright sunlight and other tough conditions.
Pairing and reconnection were effortless in the clearest supported review.
Pairing reliability is mixed. One reviewer found syncing smooth and seamless, while another reported repeated disconnect-and-reconnect behavior.
The Sports app can surface an estimated rest time after workouts, but recovery guidance is otherwise limited.
Recovery guidance is strong. Reviews highlight training readiness, recovery time, and daily summaries that help frame when to push and when to back off.
The clearest supported review reports generally reliable day-to-day connection behavior.
General reliability is strong, with reviewers saying the watch can be relied on for training and that key controls remain responsive even after submersion.
Compared with mainstream rivals, reviewers note missing extras such as fall detection.
Safety coverage includes Garmin’s Incident Detection and LiveTrack features for activity sharing and emergency notifications.
Offering both 42mm and 45mm sizes improves choice and wrist fit.
Two case sizes broaden the fit range, and multiple reviewers specifically call out the benefit of having both 42mm and 47mm options.
Native sleep tracking is absent in the supported reviews, so there is no sleep accuracy story to lean on.
Sleep tracking is useful but not flawless. Reviews say it is reasonably accurate and helpful for readiness, though some found it less robust than the best sleep-focused competitors.
Notifications work well overall, with fuller interaction on Android than on iPhone.
Notifications work, but the experience is mixed. Some reviewers had smooth delivery, while others found text truncated or alerts too persistent on screen.
The E4 is consistently described as a well-rounded general smartwatch for notifications, apps, payments, and activity basics.
Smartwatch features are improved meaningfully with the added speaker, microphone, voice tools, and day-to-day conveniences, even if the watch still prioritizes sport over general smartwatch depth.
Performance is consistently smooth, snappy, and low-lag across multiple reviews.
Software smoothness is generally strong, but not perfect. Some reviews call the experience polished, while others report crashes or temporary unresponsiveness in edge cases.
Step counts were broadly acceptable in one comparison, but another review found them about 1,000 steps high.
Step counting looked solid in direct testing, with one reviewer finding the watch was off by only around 40 steps in repeated checks.
Stress is part of the recovery picture rather than a headline feature, with one reviewer specifically noting that stress levels feed into the watch’s overall readiness guidance.
Style and design are major strengths, blending luxury watch cues with smartwatch practicality.
The design is widely liked. Reviewers highlight the brighter colors, more expressive styling, and a look that feels more refined than past Forerunners.
Google Play access and installable apps give the watch meaningful third-party support.
Third-party service support is solid for a sports watch, with repeated mentions of Spotify, Deezer, Amazon Music, and YouTube Music support.
Touch response feels quick, with no obvious lag in swipe interactions.
Touch response is consistently described as responsive and easy to use, especially alongside the physical-button setup.
TAG Heuer’s UI layer is attractive, clear, and more premium-feeling than a plain stock experience.
The interface is widely praised for feeling slicker, cleaner, more intuitive, and more modern than older Garmin implementations.
Materials and design impress, but reviewers repeatedly say value is weak versus far cheaper smartwatches.
Value for money is the main weakness. Most reviews say the watch is too expensive for what it adds over the 265, though a small number of owners still felt very happy with the purchase.
Google Assistant was described as accurate and useful in the clearest supported review.
Voice features are mostly good for simple commands, timers, and phone-assistant access, though one reviewer reported crashes and awkward behavior with the phone assistant.
Watch faces are one of the biggest strengths: varied, polished, detailed, and very on-brand.
Watch-face customization is strong, with reviewers calling the default face clean and noting that layouts and displayed data can be tailored easily.
With 50m water resistance, the E4 is suitable for swimming and general water exposure.
Water resistance is solid for swimming use. Reviews mention pool use, open-water suitability, and repeated use in lakes or the ocean without issue.
Wellness views cover steps, calories, heart rate, and daily activity in a visually appealing way, but the depth is basic.
Wellness insights are a standout. Body Battery, Sleep Score, energy level, and broader readiness-style insights were repeatedly cited as genuinely useful.
Workout coverage is broad, with reviews mentioning running, walking, golf, swimming, cycling, and general or fitness modes.
Workout coverage is excellent. Reviewers repeatedly mention broad activity support, triathlon and multisport tools, and dozens of sport modes.