> For the complete documentation index, see [llms.txt](https://docs.mybuddygard.com.au/buddy-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mybuddygard.com.au/buddy-docs/byo/choosing-sim.md).

# Choosing Sim

## Sim Card Requirements&#x20;

All the Buddy trackers only take 4G Nano sim cards from any carrier in Australia.

Make sure you have obtained the correct 4G NANO (8.8 x 12.3 mm) sim card.

* SIM card has to be activated
* SIM card needs data (at least 75 MB per month)
* SIM card has SMS receiving and sending capability
* SIM card has voice calling and receiving ability

Here in Australia, we have 3 main telecommunication companies: Telstra, Optus, and Vodafone.&#x20;

They are reliable since most of us have tried the SIM cards from these three networks. However, there are more options offered by Amaysim, Exetel, Sim2Fly, Orange, Boost Mobile, Gotalk, Coles Prepaid, Dodo, Hello Mobile, True Move, and some others that act as a reseller, but they all work through the three main operators we mentioned above.

Australian operators offer competitive pricing, fast internet speed and wide data coverage, which gives you the flexibility to choose any sim card that suits your needs and budget. All networks offers 4G Nano SIM cards so you don’t need to worry about My Buddy Gard device-compatibility issues.

How to turn off your Buddy Tracker:

{% content-ref url="/pages/pFNVYpb0bJmqomHn57t4" %}
[Turn Off](/buddy-docs/buddy-trackers/setup-adult-watch/turn-off.md)
{% endcontent-ref %}

{% hint style="warning" %} <mark style="color:orange;">**Note:**</mark> Make sure the tracker is turned off before putting the sim card in.
{% endhint %}


---

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