What actually makes a good tech lover gift for your sister?
Think in terms of fit, not price first. small upgrades, clever peripherals, smart-home additions and genuinely useful gadgets that fit their existing devices can work at several budgets, but compatibility with their habits matters more. Check the devices they already own, which ecosystem they use and whether they prefer tinkering or polished plug-and-play products; keep the things she repeatedly comes back to in her free time in view; and avoid novelty electronics with poor compatibility or no clear use after the first week. The strongest choice should feel obvious to them once they see why you picked it.
The strongest gift ideas usually come from the person’s real habits: what they already use, what they talk about and what would make an existing interest better.