Compare Tag Heuer Connected Calibre E4 vs Samsung Galaxy Watch Ultra (2025)

Workout auto-detection is broadly useful, with reviewers citing automatic workout detection and reliable walk detection, though manual starts remain better for some activities.

Reviewers liked that the watch uses Wear OS, Google Play, and installable apps, though the appeal is strongest when paired with TAG Heuer’s own software layer.

The app ecosystem is a strength: reviewers mention many available apps, Google Play access, and expanded usefulness from the extra storage.

Bands and clasps were consistently praised for comfort, softness, secure adjustment, and easy swapping, with several reviewers calling out premium rubber straps.

Band feedback is mostly positive for comfort, stability, and easy removal, though one reviewer noted dirt collecting in the strap holes.

Battery life is generally acceptable for daily smartwatch use and better on 45mm models, but reviewers still describe charging as a regular daily or near-daily habit.

Battery life is one of the clearest strengths, often described as the best in Samsung’s lineup, though heavy GPS or always-on use can reduce it.

Blood oxygen tracking is explicitly absent, making this a weak point for buyers expecting a full modern health sensor package.

Blood oxygen tracking is present across the health sensor set, but one long-term reviewer found SpO2 readings routinely low.

Bluetooth support is treated as a practical upgrade, with Bluetooth 5.0 repeatedly linked to faster syncing and data transfer.

Bluetooth support is present, including Bluetooth 5.3 mentions, but external sensor connections were criticized or described as unavailable.

Brightness is a major strength, with reviewers repeatedly praising the vivid, bright AMOLED screen and dial presentation.

Brightness earns strong praise, with reviewers citing high nits, bright AMOLED output, and easy readability.

Build quality is one of the clearest strengths, with reviewers praising the solid case, premium finish, and luxury-watch feel.

Build quality is consistently praised through the rugged titanium case, durable chassis, and robust construction.

Physical controls are a strong point, especially the rotating crown and pushers, which reviewers found satisfying, customizable, and easier than touch alone.

Button controls are mixed: reviewers like the Quick/action button and programmable shortcuts, but one long-term reviewer disliked accidental presses and limited workout button behavior.

Call handling is poor because multiple reviewers state the watch cannot take calls, even though it can receive call notifications.

Call handling is supported through Bluetooth calling, speaker/mic use, and smartwatch features for calls and texts.

Calorie usefulness is limited because weak heart-rate accuracy undermines calorie estimates, although the Wellness app does track calorie burn.

Calorie tracking is included as part of the activity metrics, but the evidence is limited to feature availability rather than deep accuracy testing.

Charging convenience is strong thanks to a sturdy stand-style dock that doubles as a bedside display rather than a small puck.

Charging is wireless and reasonably convenient, but one reviewer criticized the missing wall charging block.

Charging speed is decent, usually described around 70 to 90 minutes for a full charge, though one review notes there is no quick-charge mode.

Charging speed gets limited but positive evidence, with one review reporting a full charge in about 95 minutes.

Coaching features are a pleasant surprise, with animated guided workouts repeatedly praised as attractive, clear, and useful for casual exercise.

Coaching features are a real addition, especially Running Coach, with reviewers describing personalized plans and guidance.

Comfort is generally strong, especially with the 42mm size, titanium versions, and adjustable clasp, though some heavier models are less ideal for overnight wear.

Comfort depends on wrist and expectations: some reviewers found it comfortable, while others felt the weight or bulk.

The companion app is viewed positively when used for watch faces, fitness data, and Wear OS 3 setup, with reviewers calling it slick and informative.

The companion app setup is useful but split, with health and smartwatch settings divided between Samsung Health and Galaxy Wearable.

Contactless payments are well supported through Google Pay, and reviewers describe payment use as simple and available for shops or transit.

Contactless payments are supported through Samsung Wallet or Samsung Pay shortcuts.

Cross-platform compatibility is mixed: the watch works with both Android and iPhone, but reviewers repeatedly say Android offers fuller interaction.

Cross-platform compatibility is limited: reviews say it works with Android but not iPhone, with the best experience tied to Samsung phones.

Customization is a strength through watch faces, app shortcuts, straps, settings, and accessories that let owners tailor the watch’s look and behavior.

Customization is strong across programmable buttons, widgets, tiles, colors, and watch-face data.

Display quality is one of the best-reviewed traits, with consistent praise for sharpness, color, contrast, brightness, and premium AMOLED presentation.

Display quality is a major strength, with repeated praise for the large, vibrant AMOLED display.

Durability evidence is positive but limited, centered on sapphire crystal, ceramic bezels, water resistance, and replaceable straps.

Durability is a standout, backed by titanium construction, MIL-STD claims, scratch protection, and reviewer reports of little damage.

ECG functionality is absent, with reviewers explicitly noting no ECG or medical-style electrocardiogram feature.

ECG functionality is widely listed as part of the health feature set, though one review notes Samsung-phone pairing requirements for ECG and blood pressure.

Fit is generally positive, helped by size options and the infinitely adjustable clasp, though reviewers with slimmer wrists tended to prefer 42mm.

Fit is polarizing: it can fit some larger wrists well, but reviewers also note the single 47mm size and large wrist footprint.

Fitness tracking accuracy is a weakness; reviewers describe the watch as fine for casual use but not a replacement for dedicated sports watches.

Fitness tracking accuracy is generally good for everyday and running use, though scientific testing places it below the top alternatives.

GPS is mixed: some reviewers found fast acquisition or acceptable results, while others reported over-reported distance.

GPS accuracy is good in several reviewer tests and supports dual-frequency GPS, but scientific testing found some route deviation.

Health tracking accuracy is limited, mainly because reviewers found the sensor package and heart-rate readings unsuitable for serious insight.

Health tracking is feature-rich but mixed in accuracy, with strong sensor coverage offset by questionable antioxidant, HRV, and some sleep-stage findings.

Heart-rate accuracy is inconsistent and often weak, with several reviews reporting large differences versus chest straps, Garmin, Oura, or Apple Watch.

Heart-rate accuracy is strongest in running evidence, with one reviewer matching a Polar strap closely, while scientific testing calls it good rather than elite.

LTE connectivity is not supported, and reviewers repeatedly list cellular connectivity as a missing feature.

LTE is a consistent advantage because it is standard or broadly available, though one reviewer notes carrier setup can cost extra.

Navigation support is useful through offline maps, Google Maps routing, and GPS widgets, but one reviewer notes no built-in maps on-watch.

Materials quality is excellent, with repeated praise for stainless steel, titanium, ceramic bezels, sapphire crystal, and luxury finishing.

Materials quality is strong, centered on titanium, sapphire/robust design references, and corrosion-resistant claims.

Menu navigation is aided by the rotating crown and physical controls, though general Wear OS navigation quality depends on the software version.

Menu navigation is mostly straightforward through swipes, app drawers, digital bezel haptics, and simple operation.

Music controls are solid, with reviewers noting working playback controls and phone-free pause, play, and skip access.

Music features are useful for downloaded Spotify, streaming, media tiles, and larger storage for music.

Onboard music support is good for Wear OS, with offline playlist syncing and downloads mentioned for supported music services.

Onboard storage is a clear 2025 upgrade, repeatedly described as 64GB and useful for music, apps, and offline maps.

The OS experience is mixed: Wear OS 2 drew frustration, while Wear OS 3 and TAG Heuer’s visual layer were described as smoother and more premium.

The operating system experience benefits from One UI 8/Wear OS updates, Gemini, Now Bar, and refreshed interface features.

Outdoor visibility is a clear strength, with multiple reviewers saying the display is readable in bright sunlight.

Outdoor visibility is excellent, with multiple reviewers saying the bright display remains readable in sunlight.

Pairing reliability is positive in the few direct tests, including automatic iPhone reconnection and quick, issue-free setup.

Pairing and setup reliability are positive where tested, with instant recognition and quick setup noted.

Recovery insight is limited; one review saw an estimated rest time, while another noted no deeper feedback on how to improve.

Recovery-style insights are mixed: vascular load interests some reviewers, while HRV and related metrics draw skepticism.

Reliability is mixed: general software stability is praised in one review, but notification delivery was only moderate in another.

Reliability is mostly acceptable but not flawless, with one review noting brief display interruptions and another calling performance not horrible rather than perfect.

Safety features are limited, with at least one reviewer specifically noting missing fall detection and a restrained feature set.

Safety features include fall detection, emergency siren references, sleep apnea alerts, and related health/safety setup options.

Size options are a strong advantage, with 42mm and 45mm versions broadening appeal across smaller and larger wrists.

Size options are limited by the single large 47mm format, though the band can fit a range of wrists and the screen size appeals to some users.

Sleep tracking is weak because reviewers say native sleep tracking is missing or not emphasized.

Sleep tracking is useful and improving, but reviewers disagree on sleep stages and awake-time accuracy.

Notification handling is useful, especially on Android, but iPhone support is more limited and notification reliability can vary.

Smartphone notifications are well supported, with reviewers noting detailed notification views and suggested replies.

Core smartwatch features are generally solid for everyday use, including notifications, watch faces, apps, activity tracking, and Wear OS conveniences.

Smartwatch features are broad, including LTE, calls, texts, Gemini, Now Bar, storage, and Samsung’s full watch software stack.

Smoothness is generally strong, especially with the Snapdragon 4100+ and Wear OS 3, with several reviewers reporting little lag or snappy performance.

Software smoothness is generally good, with smooth app launches and more functional One UI behavior, despite occasional reliability caveats.

Step counting is passable but not exact, with reviewers finding roughly 1,000-step differences versus comparison devices.

Step counting is positive in basic walking tests, but one reviewer notes accuracy drops when arms are not swinging.

Stress tracking is included in Samsung’s health sensor set, though the reviews provide feature evidence more than accuracy testing.

Style and design are the product’s biggest strength, with reviewers consistently praising its luxury look, traditional-watch feel, and desirability.

Style is divisive: some reviewers like the rugged, colorful, stylish look, while others find it bulky or not pretty.

Third-party app support is good through Google Play and Wear OS, with reviewers noting downloadable apps and installable fitness apps.

Third-party app support is solid through Google Play, fitness apps such as Strava and Map My Run, and a growing Wear OS app selection.

Touchscreen responsiveness evidence is limited but positive, with reviewers reporting responsive interaction and very little latency.

Touchscreen responsiveness and gesture operation are described as intentional and straightforward in the long-term review evidence.

The interface is attractive and easy to use in TAG Heuer’s own apps, though broader Wear OS flow is less universally praised.

The user interface is improved and functional, though some reviewers dislike parts of the visual layout.

Value for money is the clearest tradeoff: reviewers admire the luxury execution but repeatedly say cheaper watches do more for far less.

Value for money is the main weak point because reviewers repeatedly question the high price and minimal 2025 hardware changes.

Voice assistant support is present and generally useful through Google Assistant, though evidence is limited and not a major focus.

Voice assistant quality is a strength with Gemini, which reviewers describe as convenient, useful, and directly available on the wrist.

Watch faces are a standout feature, repeatedly praised for detail, customization, TAG Heuer identity, and premium always-on presentation.

Watch faces are a strength, with reviewers praising quantity, customization, and Samsung’s polished face designs.

Water resistance is consistently listed at 50 meters or 5ATM, enough for swimming and daily water exposure but not intensive diving use.

Water resistance is a strong feature, with reviews citing 5ATM/10ATM ratings, IP68 claims, and pool/rain/snow use.

Wellness insights cover steps, heart rate, calories, exercise time, and daily activity displays, but depth depends on imperfect sensor data.

Wellness insights are useful but uneven: sleep coaching and vascular load get interest, while energy score and antioxidant index receive skepticism.

Wi-Fi support is present alongside Bluetooth and NFC, but reviewers mention it mostly as a standard connectivity feature rather than a standout.

Wi-Fi support is present across connectivity mentions, including LTE/Wi-Fi model references.

Workout variety is good for casual users, with running, walking, cycling, swimming, golf, general fitness, and guided workouts mentioned.

Workout variety is strong, with reviewers citing many tracked activities, multisport/triathlon capability, and broad exercise lists.