Some years ago, in a mobility training class, A monocular was presented to me as a helpful tool to recognize buses signs, so I can know when my bus is coming. I found it pretty useful, but never actually got mine, just used one I borrowed to the institution. Today I really need one since I'm facing the need to ride just one bus to come from my job to home, in a station where almost 15 different lines of buses stop to pick people up, so i'm really needing a monocular to notice when my bus is coming and if I'm riding the right one, I've ridden wrong ones a couple of times by now.

So, I'm trying to order a monocular over Amazon, but there are a lot of options there, and I need to be really sure of my purchase. I'm not having the opportunity to test all of them before chose one, so I need your recommendation, if any of you use the same method. I want it to be like, not too big, want something that fits in my hand, not a..like a telescope that everybody is gonna notice, want it to be as sutil but also as functional as posible.

If any of you have one to suggest me and provide me with the link, that would be wonderful!