Garmin Venu 4 vs Apple Watch SE 3: Fitness Tracker or

Garmin and Apple approach fitness watches from opposite directions. The Garmin Venu 4 is a fitness tracker that happens to have smart features. The Apple Watch SE 3 is a smartwatch that happens to track fitness. Both cost less than their brands’ flagships, and both serve their target audiences well. The question is which audience you belong to.

Garmin Venu 4: Contents

• Price and Positioning
• Battery Life
• Fitness Tracking Accuracy
• Display and Design
• Ecosystem and Data
• Value for Money
• Who Should Buy Which

Price and Positioning

The Garmin Venu 4 retails from around £469.99 in the UK ($549.99 in the US) and launched in September 2025. The Apple Watch SE 3 comes in from £219 in the UK ($249 in the US) after its February 2026 launch, making it roughly £250 cheaper at retail. That price gap is significant, but it narrows when you consider what each device prioritises. The Garmin packs in fitness sensors, a dual-frequency GPS and battery life that the Apple Watch cannot match, while the SE 3 delivers smart features, an S10 chip and app ecosystem access that Garmin does not attempt to compete on.

Battery Life

This is the most dramatic difference between these two watches, and it might be the deciding factor for many buyers.

The Garmin Venu 4 is rated for up to 12 days of battery life on the 45mm model (10 days on the 41mm) in smartwatch mode, with always-on display cutting that to around 3 to 4 days. In GPS-only mode, it runs for more than a day continuously. In practice you charge it once a week and mostly forget about it.

The Apple Watch SE 3 lasts approximately 18 hours on a single charge, although Apple has added fast charging that tops up 8 hours of battery in a 15-minute session and reaches 80% in about 45 minutes. That makes nightly or morning top-ups easier to fit in, but most owners still charge it daily and plan their sleep tracking around a morning power session.

If you want a watch that tracks your workouts, sleep, and daily activity without thinking about charging, the Garmin wins this category decisively. If you are comfortable with a shower-break top-up, the SE 3’s new fast-charging takes most of the sting out of its shorter stamina.

Fitness Tracking Accuracy

Garmin’s core competency shows here. The Venu 4’s optical heart rate sensor is more accurate during high-intensity interval training and strength exercises than the Apple Watch SE 3. Both are comparable for steady-state cardio like running and cycling, but the Garmin maintains better wrist-based accuracy when your heart rate spikes and drops rapidly. The Venu 4 is also the first Venu to add an ECG app, giving it parity with Apple on that particular heart-health check.

GPS is another advantage for the Garmin. The Venu 4 uses dual-frequency multi-band GNSS (L1 and L5) for more accurate tracking in urban canyons, tree cover and mountains. The Apple Watch SE 3 uses single-frequency GPS and relies more on companion iPhone data to clean up tracks.

One significant advantage for the Garmin: it works with both iPhones and Android phones. The Apple Watch SE 3 requires an iPhone. If you use Android, the Garmin is your only option between these two, regardless of other considerations.

Display and Design

The Apple Watch SE 3 now includes an always-on display for the first time in the SE line, powered by the new S10 chip. The aluminium case comes in 40mm and 44mm sizes in midnight or starlight, with Ion-X glass that Apple rates as four times more crack-resistant than the previous generation.

The Garmin Venu 4 also uses a bright AMOLED display (peaking at 2,000 nits) with always-on capability. Screen clarity is excellent, and the 41mm and 45mm sizes come in lunar gold, light sand, silver and citron options with easily-swappable leather or silicone bands. A built-in speaker, microphone and LED flashlight round out the hardware extras.

Ecosystem and Data

Garmin Connect is one of the most comprehensive fitness data platforms available. It stores years of training data, provides detailed trends analysis, offers training plans, and integrates with third-party platforms like Strava, TrainingPeaks, and MyFitnessPal. The depth of data available is unmatched at this price point, and the Venu 4 adds Body Battery, HRV status, Pulse Ox, menstrual cycle tracking with skin temperature, and respiration tracking.

Apple’s Health app and Fitness app provide a cleaner, simpler interface with less granularity. The data is there but presented in a way that prioritises accessibility over depth. Integration with Apple’s broader health ecosystem, including sharing data with healthcare providers, adds value that Garmin does not offer.

For a look at how the flagship models from both brands compare, our Apple Watch Ultra 3 vs Garmin Fenix 9 comparison covers the high end in detail.

Value for Money

The Apple Watch SE 3 at £219 is the better value if you want a smartwatch that also tracks fitness. It does more things competently, and the addition of always-on display, a new S10 chip and fast charging close the gap on the full Apple Watch Series 10 considerably. The Garmin Venu 4 at £469.99 is the better value if you want a fitness watch that also handles notifications, and if you are prepared to pay for the battery life, dual-frequency GPS, ECG and flashlight.

Neither is overpriced for what it delivers. The question is simply what you prioritise.

Who Should Buy Which

Buy the Garmin Venu 4 if: You train regularly and want detailed fitness metrics. Week-long battery life matters to you. You use an Android phone. You prefer Garmin Connect’s data depth. You do not need extensive smartwatch app support.

Buy the Apple Watch SE 3 if: You own an iPhone and want deep integration. Smart features like messaging, calls, and apps are important. You want the most capable smartwatch at this price, including the new always-on display. Basic fitness tracking meets your needs. You are already invested in Apple’s ecosystem.

If your health tracking needs extend beyond what either of these watches offers at this price, our Apple Watch health monitoring guide explains what the full sensor suite in the higher-end models provides and whether the upgrade is worth it for your specific health goals.