Reddit, I opened up my Acer Aspire One (ES1-132) recently in the hopes of upgrading the 32GB SSD. It turns out the SSD is eMMC so it is soldered to the motherboard.
Acer Aspire ES1-132-C0NU (SSD and RAM Upgrade) — Acer Community
Original Acer Aspire ES1-132 black cover upper w/ US keyboard | eBay
Acer Aspire ES1-132 laptop review: Handy, cheap and high on storage - India Today
Da0zhpmb8f0 For Acer Aspire Es1-132 Es1-332 Laptop Motherboard With N3350 Cpu 2gb-ram 32g-emmc Nbghn11005 Nb.ghn11.005 100% Test - Laptop Motherboard - AliExpress
Acer Aspire ES1-132 laptop review: Handy, cheap and high on storage - India Today
ACER Aspire ES1-132 NX.GHKEU.002 Black - red - iPon - hardware and software news, reviews, webshop, forum
Acer Aspire ES1-132 Screen Protector - Privacy
Acer Aspire ES1-132-C2HG Midnight Black 11.6-in HD Intel Celeron N3450/2GB/500GB/Endless OS | VillMan Computers