Want birding binoculars but 100$ budget :(

I know... I know. $100 will probably get me trash binoculars but there must be something?! I'm just starting out and don't want to spend a bomb. I'm seeing these options in my budget:

  1. CELESTRON COMETRON 7X50

  2. Celestron Upclose G2 8X40 Porro Binocular

  3. Bushnell Falcon 10X50 Wide Angle Binoculars

  4. Amazon Basics 8X40 High-Power Binoculars

  5. Celestron Outland X 8X42 Binocular (over budget)

  6. Nikon ACULON T02 10X21 Binocular (over budget)

  7. Nikon Aculon T02 8x21 Compact Binoculars (over budget)

  8. PENTAX Binocular SP 8x40

  9. Nikon ACULON A211 10x50 Binoculars (way over budget)

  10. NIKON PROSTAFF P3 8x42 (way over budget)

I want this mainly for birding in Bangalore, India (it's mostly always bright and sunny). Any help is greatly appreciated :) Thank you!

ps. I think I will be okay so wait and spend on a Nikon etc. but as a beginner, will I be able to tell the optical difference / quality difference between high end and low end binoculars? I also want something lightweight.