Up to 2GB (SD/MMC; early body, smaller cards recommended)
Battery
Pentax D-LI8
Size
84 x 52 x 21 mm
Weight
120 g with batteries
Pentax Optio S4i FAQ
What battery does the Pentax Optio S4i use?
Pentax Optio S4i uses Pentax D-LI8. When buying used, confirm the seller includes a working charger or plan to add one. See the battery guide for charger and spare-battery checks.
What memory card does the Pentax Optio S4i take?
Pentax Optio S4i uses SD/MMC card, Internal. The current buyer-facing maximum is Up to 2GB (SD/MMC; early body, smaller cards recommended); for older or unusual formats, stay within that limit and avoid oversized cards. See the memory card guide before buying cards for older cameras.
Is the Pentax Optio S4i worth buying used?
It can be worth buying if you want a 4 MP Pentax digital camera from 2004 with 1/2.5-inch CCD. Check power, lens movement, screen condition, and storage access before paying. Run the used digital camera checklist before buying. For nearby Pentax options, compare Pentax Optio S45 and Pentax Optio S50.
How do you transfer photos from the Pentax Optio S4i?
The simplest transfer path is usually to remove the memory card and use a compatible card reader. If the camera uses internal storage or a rare card format, confirm the cable or reader before buying. The card reader guide and photo transfer guide cover the common options.
Pentax Optio S4i is worth judging as its own Pentax pocket compact body, not just as a generic old compact. Start with condition, the exact battery/card setup, and whether its look fits what you want to shoot.
What owners like
Pentax Optio S4i works best when you want small-bag snapshots, flash photos, mirror selfies, and a clean pocket-camera look rather than a technically perfect modern camera; its 1/2.5-inch (5.744 x 4.308 mm) CCD and 35-105 mm equivalent, F2.6-4.8 are the main character of the look.
Common complaints
Check the lens movement, flash, screen, buttons, and card door calmly before relying on it; older compact bodies can need a little patience without being a bad buy.
What to compare
Compare it with Pentax Optio 43WR, Pentax Optio 750Z, Pentax Optio L40, Pentax *ist DS to decide whether you want this exact body, a cheaper nearby compact, or a slightly more capable alternative.
