XA2 has a meter; but no meter display.
Meter controls the shutter speed.
There's a green LED 'low-light' warning indicator in the view-finder, if the shutter speed is going to be beneath I think 1/15th.
Offers shutter speeds far beneath that, if you use a camera support... would say tripod, but rather defeats pocket camera... but convenient chair, wall, car roof... usually something near-by!
Have to rate the little XA... Mine saw two decades of serious abuse, and consistently worked and worked well.
Its a genuine point and shoot, made for the non-enthusiast; YET, it was such a 'great' little camera it is still mentioned in the same breath as serious aficionado's cameras like the Minox or Rollie.
£25, from a dealer, with flash? Very hard to beat. In 1980, that little camera was about £90 in the shops, it wasn't a 'cheap' camera, by a very long stretch.
Later Mju... I really don't rate. Especially the Mju 'zoom'. Mju, packed an awful lot more features into the same body-size; auto-advance, DX-coding, integrated flash; but it was ten or more years later, built down to a price to be sold in the Under £100 threshold. lens was good, think it was a little wider than the XA's 35mm.. 28 or 30? I dont recall... but it was no where near as durable a bit of kit.
Mju Zoom? Great idea, and wonderfuly de-rigeur in classic Olympus tradition, putting variable focual length in a pocket-camera for the man in the street... bludy awful to use and horribly fragile....
My money would for sure, go on an XA.... but then I have three... and I would say I put my money where my mouth is..... but, actually I was given all of them!