If you work for 35 years in the UK you will be entitled to £168.50 per week (£8762 per year).
If you move and are working abroad it may make a lot more sense to move the years worked into your relevant tax resident country.
As it stands today the UK has a reciprocal relationship where countries will recognise the years worked in the UK as well as any years studied there.
If you were a higher rate tax payer you will have overpaid your National insurance contributions and will very likely have more years to transfer than you imagine.
Here is a link to the form you will need to find out from the UK HMRC where you stand. You can either do it online or send it back to me and I can help you discover your status.
https://www.gov.uk/check-state-pensionhttps://www.gov.uk/government/publications/application-for-a-state-pension-statementI will be honest for many people this can represent a great option rather than leaving it in the UK and taking the pension as annual payments