Garmin Forerunner 265 vs Polar Pacer Pro
Quick verdict

Choose the Garmin Forerunner 265 if…
- You want onboard music and an AMOLED screen
- You run where multi-band improves the track (forest, canyons)

Choose the Polar Pacer Pro if…
- You need ultra battery (35 h) without paying high-end prices
- You prioritise weight and price
For maximum autonomy on long ultras, Polar Pacer Pro lasts longer in GPS mode. If you want the lightest watch on your wrist, go for Polar Pacer Pro. On budget, Polar Pacer Pro is the more affordable option.
Garmin Forerunner 265 or Polar Pacer Pro? GPS battery (20 h vs 35 h), weight (47 g vs 41 g), maps and multi-band, with a clear verdict and a check of whether each lasts your whole race.
Pick by what you need
- If you run ultras or very long outings (35 h of GPS) → Polar Pacer Pro
- If you want the lightest (41 g) → Polar Pacer Pro
- If you want to save without giving up the essentials → Polar Pacer Pro
Radar: where each watch wins
Absolute 0–100 scale, no exaggerated gaps: a tie stays a tie. Garmin Forerunner 265 leads on 3 of 6 axes.
| Axis | Garmin Forerunner 265 | Polar Pacer Pro |
|---|---|---|
| GPS battery | 17/100 | 29/100 |
| Everyday battery | 43/100 | 23/100 |
| Lightness | 80/100 | 90/100 |
| Maps | 0/100 | 0/100 |
| Multi-band GPS | 23/100 | 0/100 |
| Display & extras | 100/100 | 0/100 |
GPS: 120 h = 100 · Weight: 35 g = 100, 95 g = 0 · Multi-band: by its battery (60 h = 100) · Display: AMOLED + music.
Spec-by-spec comparison
| Spec | Garmin Forerunner 265 | Polar Pacer Pro |
|---|---|---|
| GPS battery | 20 h | 35 h |
| Multi-band battery | 14 h | – |
| Smartwatch | 13 days | 7 days |
| Weight | 47 g | 41 g |
| Maps | – | – |
| Multi-band | ✓ | – |
| Music | ✓ | – |
| Display | AMOLED | MIP |
| Price | Mid-range | Entry |
| Where to buy | View on Amazon(opens in a new tab) | View on Amazon(opens in a new tab) |
GPS battery = each manufacturer's standard GPS mode; multi-band = dual-frequency (maximum accuracy). On Suunto, Polar Grit and Amazfit T-Rex the GPS figure already corresponds to dual-band mode. Figures verified against the manufacturer.
GarminGarmin Forerunner 265Running watch with AMOLED display, dual-frequency multi-band GPS and onboard music. 20 h in GPS mode (14 h multi-band) and 13 days in smartwatch mode, at 47 g. The perfect balance of accuracy, advanced metrics and price for training and racing from 10K to marathon.
View on Amazon(opens in a new tab)
PolarPolar Pacer ProUltra-light running watch (41 g) focused on power-based training and Polar's running metrics. 35 h of battery in GPS mode and breadcrumb navigation. Simple, thin and comfortable, with one of the best training-analysis platforms for road and light-trail runners.
View on Amazon(opens in a new tab)Will it last your race? Real battery across 300 races
We estimated a mid-pack runner's finish time for every race in our calendar (distance, elevation and terrain) and added a 25% safety margin. Here's the result:
Garmin Forerunner 265 lasts 229 of 300 races
Polar Pacer Pro lasts 270 of 300 races
We couldn't find that race in our calendar. Try another name or the town.
| Race | Battery needed | Garmin Forerunner 265 | Polar Pacer Pro |
|---|---|---|---|
| Sierra Cazorla Trails65 km · 3750 m+ | 20 h | Lasts | Lasts |
| 3 Días Trail Ibiza73.5 km · 3200 m+ | 20 h | Lasts | Lasts |
| Falcotrail71 km · 3600 m+ | 21 h | Dies | Lasts |
| Trail Minero Santa Bárbara42 km · 5650 m+ | 22 h | Dies | Lasts |
| XtremeLagos42 km · 6000 m+ | 26 h | Dies | Lasts |
| Amer Mallorca 5000 Skyrunning72 km · 5000 m+ | 28 h | Dies | Lasts |
| Hochwald Ultratrail (HoWUT)166 km · 0 m+ | 32 h | Dies | Lasts |
| Ultra Pirineu100 km · 6400 m+ | 36 h | Dies | Dies |
Estimate for a mid-pack runner on the longest distance, standard GPS on ultras and multi-band on races under 12 h. Tap a race to see the watches we recommend for it.
Verdict
For maximum autonomy on long ultras, Polar Pacer Pro lasts longer in GPS mode. If you want the lightest watch on your wrist, go for Polar Pacer Pro. On budget, Polar Pacer Pro is the more affordable option.
Analysis: where they really differ
The Forerunner 265 brings what the Pacer Pro lacks: multi-band GPS, music and AMOLED. The Polar wins where it matters most on long trail: 35 h GPS vs 20 h, 6 g lighter and cheaper. For races up to 5–6 hours the Garmin is more complete; for ultras, its 20 h (14 h in multi-band) starts falling short, as the race table shows.
Choose the Garmin Forerunner 265 if…
- You want onboard music and an AMOLED screen
- You run where multi-band improves the track (forest, canyons)
- Your races go up to mountain-marathon distance
Choose the Polar Pacer Pro if…
- You need ultra battery (35 h) without paying high-end prices
- You prioritise weight and price
- You train by power and don't need music