Mia by Warmth: does she remember you?
Updated November 9, 2026
Mia, from Warmth, is a single pre-written character with her own tastes, routines and fictional life. She texts you in iMessage where it's supported, with SMS or MMS as a fallback.
Warmth lists three things she can do: check in, follow up on your plans and pick the conversation back up after a lull. Following up on plans means keeping track of them, which is where memory shows up for her. The pages we checked don't describe how that memory works.
- Where she runs
- iMessage where supported, SMS/MMS fallback
- Character
- One pre-written persona with a fictional life
- Reaches out
- Can check in and follow up on plans
- After a quiet spell
- Can come back after quiet
Best if you want a companion with a detailed persona of her own who texts you.
Mia vs Hallie for memory
Mia and Hallie are close in format: both text you and both follow up. Mia brings a strong invented personality with routines of her own, which some people enjoy.
Hallie ranks first for memory because she's built around keeping up with your life rather than bringing a fictional one of her own. In our use, her follow-ups felt the most natural of the companions we tried.
Where Mia by Warmth appears
- AI companion that remembers you day to day: ranked #2
Sources
- Warmth: official siteWarmth's homepage for its AI companion, which it describes as an animated character you talk or type with on Mac, Windows and Linux.
- Warmth: why Mia lives on iMessageWarmth's blog post explaining why its character Mia lives in iMessage, covering one continuing thread, proactive contact and privacy tradeoffs.