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Home > New Gear > Garmin Forerunner 245 vs Forerunner 45 vs Forerunner 945: Full Features Specifications and Priace Comparison
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Garmin Forerunner 245 vs Forerunner 45 vs Forerunner 945: Full Features Specifications and Priace Comparison

Garmin Forerunner 245 vs Forerunner 45 vs Forerunner 945: Full Features Specifications and Priace Comparison

By  Joe Horner 2019-08-08 20532 0

Garmin, a famous American navigation electronics brand, launched three new sports watch in one time: Forerunner 45 (45s), Forerunner 245( music) and Forerunner 945. Today we will take a look at their similarities and differences, hoping to help you choose better.

Garmin Forerunner 245 vs Forerunner 45 vs Forerunner 945 


With the continuous improvement of performance parameters and functional configuration, the acceptance of wearable devices is getting higher and higher. There is also a clear trend that traditional sports watches, outdoor watches and smartwatches are beginning to merge.


These wearable products retain strong professional attributes, such as reliable and convenient physical keys, professional monitoring functions and longer battery life, on the basis of which some intelligent functions will be embraced. For example, the linkage with the mobile phone as the basic function, through the mobile phone can quickly view the details of the movement, a variety of functional settings and so on.


The three new products 45,245 and 945 of the Garmin Forerunner series are very much in line with the product definition mentioned above, ensuring professionalism and many modern functions at the same time.


Garmin Forerunner 245 vs Forerunner 45 vs Forerunner 945 

Left (Forerunner 945), middle (Forerunner 245), right (Forerunner 45)

Appearance compare

First of all, the most obvious difference is the size of the dial. The size of the Forerunner 945 is 47mm, which looks much larger, and the sizes of the Forerunner 245 and Forerunner 45 are 42.3mm and 42mm respectively. The difference between the two sizes is not obvious.


However, it should be noted that the screens of the Forerunner 945 and Forerunner 245 are 1.2 inches (240x240 pixels), so the smaller Forerunner 245 on the dial appear to have a higher screen ratio.


It is worth mentioning that the Forerunner 45 also has a small 45S version, which has a 39mm dial and looks a little smaller and lighter.


Garmin Forerunner 245 vs Forerunner 45 vs Forerunner 945 

Left (Forerunner 945), middle (Forerunner 245), right (Forerunner 45)

Materials compare

In terms of material use, all three use fiber polymer bezels to take into account the durability and weight of the watch. None of the three watches is very heavy, weighing 50g (Forerunner 945), 38.5g (Forerunner 245g) and 36g (Forerunner 45) respectively.


Garmin Forerunner 245 vs Forerunner 45 vs Forerunner 945 


The three watches have different screen glass materials. The Forerunner 945 uses Corning gorilla glass DX, Forerunner 245 uses Corning third generation gorilla glass and Forerunner 45 uses chemically fortified glass. In contrast, the Forerunner 945 glass is more scratch-resistant, which is determined by its price.

Dial thickness compare

In terms of dial thickness, the three watches are 13.7mm (Forerunner 945), 12.2mm (Forerunner 2445) and 11.4mm (Forerunner 45), because of the light weight of the watch and the transition of the bottom sensor. So there's no obvious tiredness to wear it.


Garmin Forerunner 245 vs Forerunner 45 vs Forerunner 945 

Upper (Forerunner 945), middle (Forerunner 245), lower (Forerunner 45)


One more thing to share with you about the appearance is that the 20mm silicone strap of Forerunner 245 supports quick disassembly design, and the other two can't be quickly removed.


Garmin Forerunner 245 vs Forerunner 45 vs Forerunner 945 

Left (Forerunner 945), middle (Forerunner 245), right (Forerunner 45)


Let's talk about the parameter configuration of three Garmin Forerunner watches. First of all, the good news is that all three watches are equipped with semi-transparent and semi-trans MIP displays, are also visible in the sun and consume less power, making them ideal for long outdoor use.

Battery life compare

In terms of endurance, because turning on the GPS has a great impact on the endurance of the sports watch, it should be seen separately from the daily use.


The longest duration is Forerunner 945, smart mode about 14 days, GPS mode about 32 hours.


Forerunner 245 intelligent mode about 7 days, GPS mode about 22 hours.


Forerunner 45 intelligent mode is also about 7 days, but GPS mode is only 11 hours.


In general, the size of the smartwatch (battery size) is proportional to the duration of life, from the size of the three watches can also be estimated.


Garmin Forerunner 245 vs Forerunner 45 vs Forerunner 945 

Sensors compare

All three Garmin Forerunner watches support GPS, GLONASS and Galileo positioning systems, but they are somewhat different in sensor equipment.


The Forerunner 45 is equipped with the most basic, including optical heart rate sensors and accelerometers, while the Forerunner 245 adds an electronic compass and pulse oxygen.


The Forerunner 945 is more advanced, on the basis of which temperature sensors, gyroscopes and barometric altimeter can obtain more dimensional monitoring data.


It is worth mentioning that all three Forerunner watches support 5ATM waterproof and can be used safely when swimming in the swimming pool.


Finally, let's talk about the functional similarities and differences of the three watches.


Garmin Forerunner 245 vs Forerunner 45 vs Forerunner 945 

Function compare

In the basic function, whether it is sports monitoring or sports guidance can be well completed. Download the Garmin APP at your smartphone can obtain detailed motion data. The difference is that Forerunner 245 and 945 can get richer data content.


For example, if you are a higher-level sports enthusiast, Forerunner 245 and 945 can be used with the running dynamic sensor (RDP) to obtain more professional monitoring data. Such as stride length, ground contact time, and so on.


On the other hand, the lactic acid threshold data can also be obtained by using 945 with heart rate sensor, which further improves its professionalism.


In addition, Forerunner 945 has added the focus of training load, which analyzes the distribution of load by the type of activity and the amount of training in the latest period of time, so as to provide the target direction for the training goal of the next stage.


At the same time, because the Forerunner 945 has more sensors, it supports thermal adaptation and high altitude adaptation, and the watch automatically modifies to provide more accurate values when ambient temperatures rise or when the VO2 Max value is affected by thin air at high altitude.

Garmin Forerunner 245 vs Forerunner 45 vs Forerunner 945​ 


Now many people like to run while listening to music, if the watch has offline music storage space can be directly paired with Bluetooth headphones, do not have to bring an extra mobile phone. The Forerunner 945 supports music playback. The Forerunner 245 needs to purchase M version to support it, while Forerunner 45 does not. In addition, Forerunner 245m also supports Alipay payment.


In addition, there are one feature that the Forerunner 945 have but other two Forerunner 45 and Forerunner 245 does not have is the Garmin Pay, can implement NFC payment, coupled with its support for full-color maps, it can do a lot of things outside of the phone.

Price compare

As of August 5, the Forerunner 45, Forerunner 245 and Forerunner 945 watches were priced at 1680 RMB, 2480 RMB and 4880 RMB respectively. The three watches have opened a wide range in terms of price.


If you're a green hands who's just starting to exercise regularly, Forerunner 45 is good enough; if you're already training in a planned way, including running marathons, the longer and more powerful Forerunner 245 will be better suited. If you are already involved in professional sports, such as the need to take part in more complex sports such as triathlon, the longer and more reliable Forerunner 945 will be the ultimate choice.


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