Back in the day, Samsung used to release "s" versions for some of its mid-rangers, with improved specs compared to the 'vanilla', non-"s" models. It hasn't done so in a while, but apparently it's now ready to get back into that game. A Galaxy M55s might be coming soon, judging by the Wi-Fi Alliance certification of a Samsung smartphone with the model number SM-M558B.
For reference, the Galaxy M55's model
number is SM-M556B. The higher number strongly implies this will be an
"s" version, but unfortunately no other details are known about it
yet - other than the fact that it will support dual-band Wi-Fi.
For reference, note that the Galaxy M55
comes with a 6.7-inch 1080x2400 Super AMOLED+ screen with 120 Hz refresh rate
and 1,000-nit peak brightness, the Snapdragon 7 Gen 1 SoC, 8/12GB of RAM,
128/256GB of expandable storage, a triple rear camera system (50 MP main with
OIS, 8 MP ultrawide, 2 MP macro), a 50 MP selfie camera, and a 5,000 mAh
battery with support for 45W wired charging.
If history does in fact repeat itself,
then the M55s should be a little bit higher-end at least in one regard. What
that will be, we'll let you know when we find out.