Grabbing a new SIM card might not be on your priority list every day, let alone right before Christmas, but if you were thinking about giving T-Mobile a try or if the uncarrier's tactics have made you curious and you want to check its network coverage and plans, now might be the best time to give it a go.

T-Mobile's SIM Starter Kits, which contain a prepaid Nano SIM Card with Micro and Standard SIM adapters, are seeing their price slashed to next to nothing.

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