In Depth: Satellite Tracker Models

introducing Satellite Trackers

Explore the most popular satellite tracker models that we support

While most of our events use our Queclink GL320MG trackers, there are certain situations where a GSM tracker is not the best choice and satellite trackers are necessary. Typically, this is when events traverse extremely remote areas and/or have significant safety risks that satellite tracking helps to mitigate.

Both GSM trackers and satellite trackers use GPS to ascertain their position. But the key difference is that while GSM trackers use the cell network to then transmit this data, satellite trackers use one of a number of satellite networks. This means – generally speaking – that satellite trackers have better coverage and should be more reliable in remote areas.

It is due to these considerations that our USA team operate a fleet of SPOT trackers alongside their Queclink GL320MG trackers. And all our maps support adding feeds from external trackers. We currently support SPOT, Garmin inReach and ZOLEO trackers, with more options under consideration.

Key ConSIderations

Although satellite trackers all work in fundamentally the same way, there are still some key things to consider when comparing different models.

Coverage

While some satellite networks offer truly global coverage, others do not and will provide a coverage map to check

Interval frequency

Lower frequency can often incur a higher cost, plus it may be something you cannot change without physically connecting the device

Charging

Some models still require disposable lithium batteries, whereas others have internal batteries with USB charging

Antenna type

Unidirectional aerials require the tracker to face upwards, so trackers with multidirectional aerials are more practical and reliable

SOS functionality

Most devices have an SOS function, but this will work differently on each. With rental trackers, it’s important to establish if this has been altered or disabled

Messaging

Some satellite trackers only allow predefined messages, while others support two-way messaging for real-time communication

Latency

This is the speed with which the signal travels from the device to our servers and it varies between networks – sometimes in minutes

Satellite Tracker MOdels

SPOT GEN4

The fourth generation in SPOT’s popular line of trackers, this is one of the most widely available satellite trackers currently. Robust, easy to use and relatively inexpensive, these are the go-to for many people when it comes to satellite trackers.

However, their unidirectional aerials, higher latency and reliance on a network of geostationary satellites mean they fall short in terms of performance when compared to other options.

They also use the Globalstar network so don’t offer 100% global coverage. Therefore, these trackers are not good choices for round-the-world trips, but those heading off grid in Europe or the Americas often find them more than adequate.

Garmin InReach Mini 2

The updated version of Garmin’s inReach Mini, this tracker makes a few small tweaks – such as USB-C charging – to an already successful design. Offering a very different solution to SPOT, Garmin trackers prioritise performance over price.

A multidirectional aerial combined with the Iridium satellite network mean that you get a tracker that almost never misses a ping and can go anywhere. The default interval of 10 minutes (adjustable on more expensive plans) is slightly disappointing , but it is at least ultra reliable.

Both the tracker itself and the subscription plans are amongst the most expensive around, which makes this model less popular than the SPOT. However, they are perfect for adventures in remote corners of the world, also offering two-way messaging.

ZOLEO Global Satellite Communicator

A relative newcomer, the ZOLEO tracker offers a lot of the functionality of a Garmin inReach, but at a price point closer to a SPOT Gen4. We added support for this model in 2024.

It also uses the Iridium network and offers extensive off-grid messaging functionality via your mobile phone. The default tracking interval is six minutes, which is actually better than the inReach default.

Although not widely used at event level yet, this model promises a lot and looks to have improved on several of the weaknesses associated with SPOT trackers.