Choosing running watches & heart-rate gear comes down to a clear fork: do you want a wrist-worn GPS watch that also monitors heart rate, or a torso-worn chest strap focused on heart-rate capture? The Garmin Fēnix 7X Pro and Garmin HRM1G serve different training setups, so the right choice depends more on the hardware you need than on brand.
Quick verdict
Pick the Garmin Fēnix 7X Pro Sapphire Solar GPS Watch if you want one wrist device for GPS-led running, heart-rate monitoring, sleep tracking, and activity tracking. Choose the Garmin HRM1G Wireless ANT+ Heart Rate Monitor Chest Strap if a dedicated torso strap is the priority. The $414.00 price spread makes this a scope-versus-cost decision: a broad GPS watch against a focused heart-rate accessory.
Listed-price comparison
| Product | Listed price | Condition |
|---|---|---|
| Garmin Fēnix 7X Pro | USD 439.95 | Used |
| Garmin HRM1G | USD 25.95 | Used |
Where each product wins
Garmin Fēnix 7X Pro wins for watch-led training
The Garmin Fēnix 7X Pro suits the runner who wants a wrist device to handle more than heart-rate capture. Its title identifies it as a GPS watch, while its features include heart rate monitoring, sleep tracking, a solar-powered option, and sensors including GPS, an accelerometer, a gyroscope, and a compass. It also lists support for iOS and Android. That combination fits someone seeking a single wrist-based training companion for running and other indoor or outdoor activities. The tradeoff is its used condition, so the appeal is its breadth of functions rather than a new-condition purchase.
Garmin HRM1G wins for a strap-first setup
The Garmin HRM1G is the more direct fit for a shopper specifically seeking a chest strap heart rate monitor. Its title names wireless ANT+ connectivity, and the body-area attribute places it on the torso. The description specifies one chest strap with a fabric harness, keeping the purchase focused on the strap format. At USD 25.95, it is the lower-priced choice in this comparison. The limitations are equally concrete: no battery is included, and the used unit has scuffs and other signs of use. Choose it when the desired hardware is a torso-worn monitor rather than a GPS watch with a display.
Product notes
Garmin Fēnix 7X Pro Sapphire Solar GPS Watch

The Garmin Fēnix 7X Pro Sapphire Solar GPS Watch has a straightforward reason to choose it: it is a wrist-worn GPS watch with heart-rate monitoring, sleep tracking, solar power, and iOS and Android support. The black 51 mm configuration and 280 x 280 display identify the specific version clearly. Its main limitation is condition-the watch is listed as used. The named configuration also makes this a choice for shoppers who want a defined wrist-watch format, not a small heart-rate accessory. If your running routine benefits from GPS and a broader activity-tracking role, the Fēnix 7X Pro aligns more closely with that use case.
Garmin HRM1G Wireless ANT+ Heart Rate Monitor Chest Strap

The Garmin HRM1G Wireless ANT+ Heart Rate Monitor Chest Strap has a narrower but concrete appeal: the purchase centers on a black, torso-worn monitor with wireless ANT+ named in the title. A fabric harness is included with the one chest strap, which keeps the format clear. The limitation is the package condition and contents: the unit is used, shows scuffs or other signs of use, and does not include a battery. That makes the HRM1G a focused choice for someone who specifically wants strap-based heart-rate gear at USD 25.95, rather than a wrist device with GPS and a display.
Final choice by use case
- Choose the Garmin Fēnix 7X Pro for a marathon training watch or GPS running watch in a wrist-worn format.
- Choose the Garmin HRM1G for a running heart rate monitor or chest strap heart rate monitor in a torso-worn format.
The Fēnix 7X Pro is the better match when the watch itself is the goal. The HRM1G is the clearer pick when the strap is the goal and the lower listed price matters more than having GPS and watch-based features.