A little green works well on this compact G-Shock square

I like the black version of this little square quite a bit. The green lettering is subtle enough to give it some character, and the positive display keeps the face looking fairly direct. The white version is interesting too, although I would be much more likely to pick the black one for myself.

Casio describes these as compact GMD-S5610 models with fresh green accents. The references are GMD-S5610-1 and GMD-S5610-7. They share the same basic shape and specifications, so this is one decision about color and fit rather than two completely different watches to learn about.

A smaller square that still looks right

The stated case dimensions are 45.7mm long, 40.5mm wide and 11.9mm thick, with a weight of 42g. That is a fairly sensible size for a light resin watch. I am usually comfortable with something around 40mm, though a square case needs to be judged on its own proportions instead of compared directly with the diameter of a round watch.

The green is concentrated around the display and on the lettering. I like that it hasn't become an all-green case or a huge bright graphic across the face. On the black version, it gives the familiar shape a slightly different feel while leaving the watch looking fairly ordinary from a distance. That restraint is a big part of the appeal for me.

Casio uses bio-based resin for key components and lists a bio-based resin band. The watch has mineral glass, shock resistance and 200m water resistance. The functions include a stopwatch, countdown timer, alarm, calendar and white LED backlight. Battery life is approximately three years on a CR1616. There is no listed solar charging or automatic radio time correction on these references.

I would compare the fit first

The reduced thickness is useful, but I wouldn't choose this solely because it is smaller. I would want to compare the strap length and the way the case sits against a standard 5600. Casio gives a compatible wrist range of 145–190mm. That is a more useful piece of shopping information than simply assuming the compact version will fit everyone better.

The official wrist photograph shows the black model in normal use, which makes the green details easier to understand than an isolated render does. I haven't worn it or checked the buttons and display myself. The white case also needs a daylight look, since studio lighting can make pale resin look warmer or cooler than it really is.

As of November 3, 2026, Casio lists these for November. A confirmed US price and US sale date remain unknown. I give the family 88 out of 120 bezel clicks, favoring the black version. I would put that one next to a standard positive-display square and decide which case and strap actually fit me better.