COROS PACE 4 vs APEX 4: Which Should You Buy?

Both watches carry COROS’s dual-frequency GPS chipset, but they’re built for different jobs. The PACE 4 is COROS’s lightweight racing watch, priced to compete with Garmin’s mid-range Forerunners. The APEX 4 is a titanium adventure watch built for multi-day expeditions, with offline mapping and a battery that dwarfs the PACE 4’s. We’ve reviewed both individually — here’s how they stack up.

Key Specifications

  • COROS PACE 4 — £229, 32g (nylon)/37g (silicone), 1.2in AMOLED at 1,500 nits, dual-frequency GPS rated 41h (all-systems) / 31h (dual-frequency), 19 days smartwatch mode, 5ATM water resistance, no offline maps or mic/speaker.
  • COROS APEX 4 — 42mm £389 / 46mm £429, titanium bezel with sapphire glass, dual-frequency GPS rated 41h (42mm) / 65h (46mm), 34/41 days smartwatch mode respectively, global offline topographic maps, built-in microphone and speaker for voice features and hands-free calling.

Battery Life and Build

This is the biggest gap between the two. The PACE 4’s 41-hour GPS ceiling comfortably covers a full-distance Ironman with room to spare, but it won’t get you through a multi-day training camp without a charge. The APEX 4’s 46mm model nearly doubles that at 65 hours, and its titanium-and-sapphire build is genuinely more durable than the PACE 4’s polymer case — the trade-off is weight and a much higher price.

Navigation and Extra Features

The APEX 4’s global offline maps and turn-by-turn navigation are built for point-to-point trail and mountain use, not something the PACE 4 offers at all. If you never race or train off marked routes, you won’t miss it. The APEX 4’s built-in mic and speaker also enable Voice Pins and hands-free calling, features aimed squarely at adventure and ultra-endurance athletes rather than pool-and-turbo triathletes.

Check COROS PACE 4 price on Amazon

Check COROS APEX 4 (46mm) price on Amazon

Which Should You Buy?

For most triathletes racing sprint through full-distance events and training around a normal weekly schedule, the PACE 4 covers everything you need at less than half the APEX 4’s price, and its lighter weight is genuinely noticeable on a long run. Step up to the APEX 4 only if you regularly train or race off-grid, need multi-day battery for an ultra-endurance event or expedition, or simply want the more durable titanium build and don’t mind paying for it.

Buying Tips

  • If choosing the APEX 4, the 46mm gets you significantly more battery than the 42mm for £40 more — worth it unless wrist size is a hard constraint.
  • Both support COROS’s full EvoLab training suite (recovery, training load, race predictor), so you’re not losing training insight by choosing the cheaper watch.
  • Neither watch needs a subscription — full functionality is included at purchase.

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