There is a huge difference between these two subscriptions. With the connect subscription you only have 3 GB of data per month, with the iot Daten Flat you have unlimited data capacity. Conclusion: If you have little traffic, take the cheaper one (action), if you have a lot of traffic, then take the iot Daten Flat.
To answer your second question, regarding the phone number. You simply need two SIM slots in the mobile phone (dual sim). One sim card from your normal provider, e.g. swisscom. And the second sim from digitec. With android, you can then set sim 1 (main sim card) to be responsible for calls and sms and sim 2 (digitec sim) for mobile data. The internet then runs via sim 2, i.e. digitec.
Hello ElionM I used the card with a TP-Link Archer MR600 4G+ Dual Band Gigabit router. I used the Internet for a construction site in an absolute "nightmare hole" in central Switzerland and was very satisfied. During the day, most people had logged in to use the shared printer, and in the evening you could still stream easily. The card is now inactive at my place, but with the router well supplied to use the "team" again at any time. Unfortunately, I never did a speed test. Best wishes and good luck
There is a ticket system in the customer portal and the option to contact them by phone from 8am to 6pm. However, I have never tried this.
You can find the ticket system after logging in via the help link at the bottom of the page. Telephone if you look in Frequently asked questions.
No, the SIM card can only be used in Switzerland as standard. Roaming in Europe can be booked as an affordable upgrade (e.g. 10 GB for 50 francs) via the customer portal.
No, you cannot send or receive text messages with this Data Flat rate plan. The SIM card is primarily designed for data connections and does not technically support outgoing text messages or phone calls.
Yes, this is basically possible. You only need the SIM card for the first registration to receive the SMS code. After that, Telegram runs via the Internet, so it works without any problems via WLAN only, even if there is no credit left on the card.
An important note of caution: Most providers deactivate prepaid cards if they are not topped up or used for a long time (often after 12 months). If the number is deactivated and you accidentally log out or change your mobile, you will no longer be able to receive a confirmation code and will lose access to your account. It is therefore worth using the card minimally from time to time to keep the number active.
The iot data flat rate (30 days unlimited 0.4 Mbit/s) should be compatible with your setup as it supports 3G, 4G/LTE and 5G and can be configured via the APN dr.m2m.ch. The SIM7070G Shield supports these network standards, so the connection should work.
However, I would like to point out the limited speed: At 0.4 Mbit/s, data transmission is relatively slow. This should be sufficient for sending GPS data to your REST API, but delays could occur with larger data volumes or more frequent transmissions. The SIM card is designed for IoT devices and should therefore work with your Arduino setup as long as you configure the APN correctly.