Garmin Forerunner 570 vs Venu 4

Why this comparison exists at all

Garmin lists the Forerunner 570 and the Venu 4 at the same $549.99, and sells them to different people. The Forerunner is the running watch: race calendar, training tooling, the line serious runners default to. The Venu is the lifestyle watch: metal case, flashlight, ECG app, health trends.

The reason to put them side by side is that the specification difference between them is much smaller than the marketing difference, and it does not fall the way the product lines suggest. Garmin's own Venu 4 manual documents PacePro, performance measurements, training status, acute load, training readiness, recovery time, a critical swim speed test, running dynamics data and VO2 max. ratings. That is the Forerunner analysis stack, in the other case.

Garmin's two battery tables, mode by mode

Everything here is manufacturer-stated, from Garmin's Forerunner 570 product page and the Venu 4 owner's manual. We compare the larger case of each, which is the variant our live prices track.

Finding one: the lifestyle watch lasts longer in every comparable mode

Every row the two tables share goes to the Venu 4: a day more in smartwatch mode, two hours more GPS-only, three hours more in all-systems multi-band, an hour more with music running. That is not a rounding difference, and it is not the direction anyone expects when one of these watches is filed under running and the other under lifestyle.

It matters most in the multi-band row, because that is the mode you would actually run if positioning accuracy is why you bought a current Garmin, and it is the row this site ranks watches on. Fourteen stated hours against 17 is the difference between covering a long mountain day and not.

Finding two: the two tables are not the same shape

Read the middle rows again. Garmin publishes a SatIQ figure for the Forerunner 570 and no plain all-systems figure; it publishes a plain all systems figure for the Venu 4 and no SatIQ figure. Those are different things. SatIQ is Garmin's automatic mode, which switches between GNSS configurations to save power; plain all-systems is every constellation on a single frequency.

So the honest statement is that these two watches have one genuinely like-for-like high-accuracy row between them, the multi-band row, and the Venu 4 wins it. Anyone quoting "18 hours against 20" is comparing GPS-only figures, which is the weakest mode on both watches and the one neither should be bought for. This is the same mode-mismatch trap we documented on Forerunner 570 vs fēnix 8, where the headline comparison everyone repeats sets a GPS-only figure against a multi-band one.

What each one has that the other does not

Taking only what Garmin lists for each watch, rather than what a feature-count table somewhere asserts:

• Only the Venu 4 lists an ECG app, with Garmin's own footnote attached: it requires the latest software and is available in select regions only, for ages 22 and over. The Forerunner 570 specification page does not list one.
• Only the Venu 4 lists an LED flashlight, a feature that sounds trivial until you have run before sunrise.
• Only the Forerunner 570 publishes a SatIQ battery figure, which is the mode most runners leave switched on, and the Forerunner line is where Garmin ships its race and multisport tooling first.
• Both publish a speaker and microphone, 5 ATM and a 1.4-inch AMOLED in their larger case, and both pair external ANT+ and Bluetooth sensors, including the HRM 600 chest strap.
• Neither has maps. If navigation is the requirement, this is the wrong pair of watches and the answer is one tier up.

One comparison we are not making: weight. Garmin quotes the Venu 4 at 38 g for the 45 mm case without a band and the Forerunner 570 at 50 g for the 47 mm case, measured differently. Those two numbers do not belong in the same column, so we have left them out rather than printing a difference that is partly a band.

The arithmetic

Per stated all-systems-multi-band hour, the Forerunner 570 runs $30.33 and the Venu 4 $31.94. The live gap between the two prices is $3, which is worth checking on the day: both watches have been discounted below list since launch, and the one that happens to be discounted harder is a better argument than anything in the specification.

Note that our Forerunner 570 figure is derived from the 18-hour GPS-only number its roster entry carries, not the 14-hour multi-band number, so the real multi-band cost per hour is worse than the figure above. We are leaving that stated rather than quietly repaired: the site's Forerunner 570 entry has carried the GPS-only figure since launch, and changing it would move the derived numbers on every page that renders them. Either way it moves in the Venu 4's favor, which is the direction that matters for this page.

The evidence, which is the same for both: none

Neither watch has been independently validated. No peer-reviewed measurement of a Forerunner 570 or a Venu 4 exists that we could find, and the nearest evidence is unflattering to the brand rather than to either model: the one study that wore five devices on the same people for 536 nights put the Garmin last of five on nocturnal HRV agreement, and the 100-runner threshold study found the Garmin in it overestimated threshold pace by 25.8% and returned a usable estimate in only 65.2% of attempts.

That is worth saying plainly on a page about a $549.99 decision: nothing in this comparison is a claim that either watch measures you accurately. Both carry the same evidence floor, which is why they sit 0.2 apart on our rubric rather than a point apart, and why the strongest accuracy upgrade available to either buyer costs about a tenth of the watch and goes around the chest. The measured case for that is in wrist versus chest-strap accuracy.

Which to buy

Buy the Forerunner 570 if you race, if you want the multisport and race tooling the Forerunner line gets first, or if you want the SatIQ mode on a watch whose firmware is written for runners before anyone else. Our full write-up is the Forerunner 570 review.

Buy the Venu 4 if the watch has to survive a working week, a night of sleep tracking and a long run without a charger, if the ECG app or the flashlight matters to you, or if you want one device that does not look like a running watch. Our write-up is the Venu 4 review.

Buy neither if $549.99 is the ceiling rather than the target. The Forerunner 265 records the same core metrics with the same absent evidence for materially less, and a chest strap bought with the difference improves your data more than either of these watches does.

If the Venu 4 is winning this comparison for you on battery, it is worth seeing what happens when it meets a watch built for endurance: fēnix 8 vs Venu 4 sets the same 17 stated multi-band hours against 35.