Cheapest smartwatch plan
As of 2026-11-08, the cheapest smartwatch plan tracked by OpenStream is Optus' Optus Number Share at $5.00 a month ongoing, read from Optus' own published document on 2026-10-24, and it requires Eligible Optus postpaid mobile plan and a compatible phone.
4 plans from 3 carriers were compared. A watch add-on only works with a phone plan from the same carrier, so the phone plan it requires is the larger cost. Each price was read from the carrier's own page or published document on the date shown; resellers generally do not sell a watch add-on.
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Cheapest first
- Optus Optus Number Share: $5.00 a month; Shares your phone's number, calls, texts and data with the watch (500MB monthly data inclusion on the bolt-on); requires Eligible Optus postpaid mobile plan and a compatible phone; read from the carrier's document 2026-10-24
- Vodafone Vodafone NumberSync: $5.00 a month; Shares your phone's number, calls, texts and data with the watch; requires Eligible Vodafone postpaid voice plan (Cap and Prepaid excluded); read from the carrier's page 2026-11-08
- Telstra Telstra One Number: $8.00 a month; Shares your phone's number, calls, texts and data with the watch; requires Basic or higher Telstra Upfront mobile plan; read from the carrier's page 2026-11-08
- Telstra Telstra Watch Plan: $20.00 a month; The watch's own number with calls, texts and its own data allowance; requires Basic or higher Telstra Upfront mobile plan; read from the carrier's page 2026-11-08
How to read this
Each plan was read from the brand's own page on the date shown, by an hourly pass. The data allowance and the network are recorded only where the page states them. A plan sold as a recharge is priced per recharge period and labelled so; a 28-day recharge is paid thirteen times a year, not twelve, so it is not the same as a monthly price. Ranked on price alone; nothing is promoted. Errors are possible - check the brand's page. Full method: methodology. Machine-readable: this answer as JSON, MCP, llms.txt.
Related: Every smartwatch plan, with sources · Cheapest mobile plan with 20GB or more · All answers
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