Garmin for use abroad

last year i took my strava enabled android phone to lanzarote. had difficulty getting the gps to pick up, so was thinking about a dedicated cycle gps computer/logger. i'm not a premium strava user but want to record my rides. i was looking fr advice. Does the Garmin save rides on the machine that i could upload, when i get home, or do i need to upload more frequently. I wont have a computer with me but might take my android pad if i can connect the Garmin to that. sorry it's a long winded post but any advice welcome

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Canyon Ult CF SL- Spin Koppenberg-Ultegra group
This does away with the need for taking any other devices with you, your connect account can be viewed on any device with a browser.
Specailized Roubaix Comp 2014
Lapierre Zesty 2011
Garmin 510