For a portable 4K monitor, the SP90M hits all the right notes: sharp display, lightweight, easy connectivity, and good build quality. The only real compromises are the 60 Hz refresh rate and mediocre speakers — both expected in this category.
The included smart cover doubles as a stand, with two angle positions. It’s not as sturdy as a dedicated tablet stand, but it’s perfectly fine for desk use. Let’s talk about that 4K panel. spectra sp90m
is solid for a portable monitor: about 100% sRGB and 75% Adobe RGB. It’s not meant for pro color grading, but for photo editing, web design, or watching movies, it looks vibrant and natural. For a portable 4K monitor, the SP90M hits