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Garmin Foot Pod SDM4
  • Garmin Foot Pod SDM4
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Garmin Foot Pod SDM4

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Compatible with:
Forerunner 910xt
Forerunner 610
Forerunner 305
Forerunner 405
Forerunner 405CX
Forerunner 310XT
Forerunner 50
Forerunner 210
Forerunner 410
Forerunner 610
Part#: 010-11092-00

This lightweight foot pod transmits distance and pace data. It's small enough to attach to shoelaces or fit in the mid-sole pocket of compatible shoes.

The Foot Pod is one of those accessories in which the benefits are not fully understood. The question I get often is Why would I want to buy a foot pod when my watch already has GPS? Well there are 3 benefits to using a foot pod (and an additional benefit if you are using an FR60 or FR70).

Indoor running:
-If you run indoors during the colder months or inclement weather, with the use of a foot pod you can still have all the information from the run on your watch.
-Why would you need to use a foot pod when running on a treadmill when the machine will give you your time, distance and calories?
Without using a foot pod and storing the activity on your watch, you cannot analyze the run afterwards
Garmin units use heart rate based calorie counting so if you are basing your calorie expenditure off of the treadmill it will be off by as much as 50%
Using the foot pod will give you your cadence
- If you use the free Garmin Connect website (and why wouldnt you) you can have a complete activity log and not just the runs you did outside.

- Cadence is how many steps per foot per minute you are doing. The ideal cadence per foot is 90 steps per minute.
- Minimalist shoes have become very popular in the past year or so. The whole point of these shoes is to help promote a mid-foot strike which is a more efficient way of running. The typical runner heel strikes which is not efficient (over striding) and is the major cause of shin splints and other issues. Heel striking will typically give you about 80 steps per minute while mid-foot will typically give you around 90. Being able to see your cadence throughout a run can greatly help with working on efficiency. Most of the Garmin units have a cadence alert so you can have the watch let you know when your cadence drops below a given value.
- Using a foot pod outdoors will still provide cadence while the GPS provides the speed/distance.

Backup to GPS:
- If you are running outside and lose the GPS signal, this will typically only happen when running in a tunnel or under bridge, the watch will switch over to the foot pod for speed and distance. The watch will look for the GPS signal for about 30 seconds before it switches over to the foot pod, so this benefit is rarely utilized. If the GPS signal is lost for any amount of time, a straight line will be drawn from where it last had the signal until it was picked up again. Runners rarely run into a tunnel or other structures that will block GPS signals and GPS signals are almost never lost in other conditions.

FR60/FR70 Speed and Distance:
- A foot pod used with our non-GPS units (FR60/FR70) will still be able to provide you with speed and distance. The only thing lost with this option over GPS is mapping on Garmin Connect of where you ran and elevation.

Here are some additional features of the Foot Pod:
- Unlike pedometers and some other competitor foot pods which have only a 1 dimensional accelerometer, the Garmin foot pod has a 3 dimensional accelerometer. This makes it 95-98% accurate out of the box without calibrating (you can calibrate it to make it over 99% accurate).
- The battery is user replaceable with a CR2032 battery which is low in cost.
- It comes with a shoe clip which can easily be attached to the shoe laces. If you have a shoe that has a compartment in the shoe for a foot pod, this will fit in there as well.

Product Reviews for Garmin Foot Pod SDM4

Does it come with Batteries and what type of Battery does it take?
Yes it does come with a battery. Replacement Batteries are model: CR2032
1.8 Inches by 1 Inch in Size.
Light Weight.

98% accuracy (calibrated) for most users; 95% median accuracy out of the box
Measures cadence, or number of steps per minute, to optimize training
Small enough to attach to shoelaces or fit in the mid-sole cavity of compatible running shoes; automatically turns on with movement
A small, replaceable coin cell battery powers the pod for at least a year of training (>400 hrs)
Unlike simple pedometers, the foot pod uses high-precision sensors (accelerometers) to measure a runnerfs unique foot motion in 3-D, providing greater accuracy
Highly responsive to gait changes, allowing you to run speed intervals away from the track

Compatible with:
Forerunner 305
Forerunner 405
Forerunner 405CX
Forerunner 310XT
Forerunner 50

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