How does the newly released Garmin Forerunner 245 compare to the older Forerunner 645? That’s the question I asked myself when I went looking for a new watch and this article will guide you through my findings.
For the past few months I’ve been thinking about replacing my Garmin Vivoactive 3. The touchscreen was starting to bug me, I can’t count the amount of times I accidentally pressed something on that screen. And, I was interested in more running data. The Vivoactive 3 provides basic data, but the more I was running the more I got interested in performance data. I am very satisfied with Garmin in general and since I’ve also started the Garmin Coach half marathon plan, I have not considered other brands.
What am I looking for in a new watch?
- All the basics the VA3 has: GPS, heart rate, etc.
- Advanced running data
- Suitable for every day use
The most complete option would be the Fenix 5S Plus. It looks awesome, has everything I could need and some more. But, it also has a price tag of about € 650,- and that is a little more as I’m willing to spend.
In the back of my mind the decision was already made, the Garmin Forerunner 645 Music has everything I want and it looks almost identical to the Vivoactive 3, which is a plus point in my mind. And, it has buttons instead of a touchscreen. Done deal! But then Garmin went ahead and announced three new watches: Forerunner 45, Forerunner 245 or 245 Music and the Forerunner 945. The Forerunner 245 Music and the 645 Music are similar in features and price, so I had a dilemma to solve. This article will guide you through my research and thought process that led me to eventually buy the Forerunner 645 Music.
The 645 tracks 19 different sport profiles and the 245 only 16. There are some differences in the profiles, but the main thing the 645 has that the 245 doesn’t is: skiing, snowboarding, XC skiing and stand up paddle boarding.
Forerunner 645 (Music)
Forerunner 245 (Music)
Pulse OX: wrist-based pulse oximeter to gauge the saturation of oxygen in your blood. Knowing your oxygen saturation can help you determine how your body is adapting to exercise and stress.
Firstbeat race predictor: improved race time predictions. While the 645 uses VO2Max only to predict your race times for 5K, 10K, half and full marathon, the 245 also takes long- and short-term trends in your weekly running mileage totals into account.
Forerunner 645 Music
Smartwatch Mode: Up to 7 days
GPS mode with music: Up to 5 hours
GPS mode without music: Up to 14 hours
Forerunner 245 Music
Smartwatch Mode: Up to 7 days
GPS mode with music: Up to 6 hours
GPS mode without music: Up to 24 hours
Assistance alert and crash detection are only available on the Forerunner 245. This will automatically send an alert to selected contacts when your watch detects a fall or it can be activated manually with a button press.
The design of both watches is similar. The Forerunner 245 now also has a circular design instead of the rectangle design the Forerunner 235 was equipped with. While both watches have a bezel, they are not made of the same material. The 645 has a stainless steel bezel available in different colors, while the 245 has a bezel made of fiber-reinforced polymer, available only in black.
Each watch comes with Corning® Gorilla® Glass 3 and a 20 mm silicone quick release watchband.
Size and weight Forerunner 645 Music: 42.5 x 42.5 x 13.5 mm / 42,2g
Size and weight Forerunner 245 Music: 42.3 x 42.3 x 12.2 mm / 38,5g
While the Forerunner 645 is available with different color bezels, the watch itself is always black. The Forerunner 245 always has a black bezel, but the watch itself comes in either black or white. Both watches can be ordered with different color watchbands as well.
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