Garmin Forerunner 965 vs COROS Pace 3: Which GPS Watch Wins?

Overview

The Garmin Forerunner 965 is a premium endurance watch for athletes who want every metric, a vivid AMOLED display, and deep training analytics at a $599 price point. The COROS Pace 3 is a stripped-down, ultra-light training tool that delivers multi-band GPS accuracy at roughly one-third the cost. The core question is whether the Forerunner 965's additional features justify spending $400 more.

Specs at a glance

Price: Forerunner 965 ~$599 vs COROS Pace 3 ~$199
Weight: 965 at 53g vs Pace 3 at 30g
GPS battery: 965 up to 31h standard GPS vs Pace 3 up to 38h standard GPS (20h multi-band)
Display: 965 has 1.4-inch AMOLED touchscreen; Pace 3 uses MIP transflective always-on, button-only
GPS chipset: Both support multi-band GNSS across GPS, GLONASS, and Galileo; Pace 3 adds BeiDou
Skin temperature sensor: 965 yes; Pace 3 no
Water resistance: 965 at 10 ATM (100m); Pace 3 at 5 ATM (50m)
Smartwatch battery: 965 ~23 days; Pace 3 ~30 days

GPS and tracking accuracy

Both watches use multi-band GNSS and both outperform single-band competitors in dense environments. The Forerunner 965 received firmware updates specifically targeting GPS drift under heavy tree cover, and post-update trail accuracy is tight. The Pace 3 performs similarly in urban canyons and forested switchbacks, with recorded routes showing clean track-following where cheaper single-band watches drift 5 to 10 percent on distance.

At this level, neither watch has a meaningful GPS accuracy edge over the other in standard conditions. The Pace 3 adds BeiDou satellite support, which can help in Asia-Pacific regions. The Forerunner 965 benefits from Garmin's longer firmware update history and a larger user base that surfaces and resolves accuracy issues faster.

Battery life

The Pace 3 wins on GPS endurance: 38 hours in standard GPS mode versus 31 hours on the Forerunner 965. In multi-band mode, the Pace 3 drops to 20 hours, which still covers most ultramarathon efforts. The Forerunner 965 offers an expedition mode stretching to 110 hours by reducing GPS polling frequency, which is valuable for multi-day fastpacking or Ironman-distance events requiring continuous tracking over days. The Pace 3's 30-day smartwatch battery also edges out the 965's 23-day figure. For standard race distances up to 100 miles, both cover the effort. For multi-day expeditions with continuous GPS, the 965's expedition mode is the only option here.

For athletes: who wins?

Road running: Pace 3. Multi-band accuracy is comparable, weight advantage is real at 30g versus 53g, and $400 in savings buys a lot of race entries.
Trail and ultra running: Pace 3 for efforts under 38 hours. Forerunner 965 for multi-day expeditions where the 110-hour expedition GPS mode matters.
Triathlon: Forerunner 965. It has dedicated triathlon multisport modes, deeper training load analytics, and the AMOLED screen is easier to read during transitions. The Pace 3 handles multisport but with less refinement.
Recovery and HRV tracking: Forerunner 965. Skin temperature adds a physiological data point the Pace 3 cannot match. Garmin's Body Battery and HRV Status features are more mature and actionable than COROS equivalents at this time.

Verdict

For most serious runners, the COROS Pace 3 is the rational buy. It matches the Forerunner 965 on GPS accuracy, weighs 23 grams less, and costs $400 less. That is a hard gap for the 965 to close for athletes whose primary need is accurate distance and pace data over long efforts. The Forerunner 965 is the right choice for triathletes who want polished multisport workflows, athletes doing multi-day expeditions who need expedition GPS mode, and those who want the most complete physiological monitoring available including skin temperature and Garmin's full training analytics suite. Buy the Pace 3 if you run. Buy the Forerunner 965 if you race triathlon or need every sensor Garmin offers.