Garmin Forerunner 245 Music vs Vivoactive 6
Size, specs & wrist fit compared
Which one fits you
Both need much the same wrist: neither overhangs from 15 cm (5.9 in) round, and both are in their sweet spot around 16–17.5 cm. Wrist size will not decide between these two.
What else differs
- Screen: the Forerunner 245 Music uses a memory-in-pixel screen that is easy to read in sunlight and sips battery, the Vivoactive 6 a bright AMOLED screen.
- Battery: 11 days for the Vivoactive 6 against 7 days for the Forerunner 245 Music in everyday use; 24 hours for the Forerunner 245 Music against 21 hours for the Vivoactive 6 with GPS on.
The Forerunner 245 Music and Vivoactive 6 share a near-identical 42.3mm case, so on the wrist the difference is thickness and weight.
The Forerunner 245 Music is 0.1mm wider and 1.3mm thicker than the Vivoactive 6.
Forerunner 245 Music
Vivoactive 6
Forerunner 245 Music or Vivoactive 6 by wrist size
| Wrist round (mm left each side) | Forerunner 245 Music≈48.5mm lug to lug, est. | Vivoactive 6≈48.5mm lug to lug, est. |
|---|---|---|
| 14 cm / 5.5 in | Overhangs (1.7mm over) | Overhangs (1.7mm over) |
| 15 cm / 5.9 in | Overhangs (0.1mm over) | Overhangs (0.1mm over) |
| 16 cm / 6.3 in | Sweet spot (1.6mm) | Sweet spot (1.6mm) |
| 17 cm / 6.7 in | Sweet spot (3.2mm) | Sweet spot (3.2mm) |
| 18 cm / 7.1 in | Balanced (4.8mm) | Balanced (4.8mm) |
| 19 cm / 7.5 in | Balanced (6.4mm) | Balanced (6.4mm) |
| 20 cm / 7.9 in | Balanced (8mm) | Balanced (8mm) |
Switch or add watches
Garmin
Forerunner 245 Music
Garmin
Vivoactive 6
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Battery life compared
Forerunner 245 MusicVivoactive 6
Battery saver
—21 daysSmartwatch
7 days11 daysGPS with music
24 hours—GPS only
—21 hoursAll systems
—17 hoursAll systems with music
—8 hours
More comparisons
2D Dimension Schematics
- Garmin Forerunner 245 Music 42.3mm × ≈48.5mm (est.) · 12.2mm thick
- Garmin Vivoactive 6 42.2mm × ≈48.5mm (est.) · 10.9mm thick
3D preview
Forerunner 245 Music vs Vivoactive 6 on a wrist
Specifications
The short version
6 key specs| Spec | GarminForerunner 245 Music | GarminVivoactive 6 |
|---|---|---|
| Case Width | 42.3mm | 42.2mm |
| Thickness | 12.2mm | 10.9mm |
| Shape | Circular | Circular |
| Display type | Sunlight-visible, transflective memory-in-pixel (MIP) | AMOLED (optional always-on mode) |
| Battery life | Smartwatch Mode: Up to 7 daysGPS mode with music: Up to 6 hoursGPS mode without music: Up to 24 hours | Smartwatch mode: Up to 11 days (5 days display always-on) Battery Saver Smartwatch mode: Up to 21 days GPS-Only GNSS mode: Up to 21 hours All-Systems GNSS mode: Up to 17 hours All-Systems GNSS mode with music: Up to 8 hours See details |
| Released | 2019 | 2025 |
Where the specifications differ
7 differences| Spec | Garmin Forerunner 245 Music | Garmin Vivoactive 6 |
|---|---|---|
| General | ||
| Battery life | Smartwatch Mode: Up to 7 daysGPS mode with music: Up to 6 hoursGPS mode without music: Up to 24 hours | Smartwatch mode: Up to 11 days (5 days display always-on) Battery Saver Smartwatch mode: Up to 21 days GPS-Only GNSS mode: Up to 21 hours All-Systems GNSS mode: Up to 17 hours All-Systems GNSS mode with music: Up to 8 hours See details |
| Memory/History | 4 GB | 8 GB |
| Display resolution | 240 x 240 pixels | 390 x 390 pixels |
| What You'll Love | ||
| Display type | Sunlight-visible, transflective memory-in-pixel (MIP) | AMOLED (optional always-on mode) |
| Water rating | 5 ATM | Swim, 5 ATM |
| Pulse Ox blood oxygen | yes (spot-check and optionally in sleep) | yes (spot-check, and optional all-day and in sleep) |
| Battery life (smartwatch mode) | Up to 7 days | Up to 11 days (5 days display always-on) |
The other 8 specifications both list are identical.
Full Garmin Forerunner 245 Music specifications →Full Garmin Vivoactive 6 specifications →