Comparison
The Sky-Watcher EvoStar 80 APO emerges as the better choice for most amateur astronomers. While the 100mm offers slightly more light-gathering, the 80mm's superior overall score of 37 versus 30 reflects its better real-world balance and value proposition. The single most important differentiator is portability.
The EvoStar 80's 63-point portability score dramatically exceeds the 100mm's 40, and at 3.31kg, it remains genuinely transportable for regular observing sessions. The 100mm's bulk discourages frequent use, ultimately limiting your observing time. The EvoStar 100 should only appeal to observers planning permanent backyard setups who prioritize planetary performance, where its marginally better planetary score of 10 versus 22 offers limited advantage anyway.
The EvoStar 80 APO suits amateur astronomers seeking a versatile, portable refractor that delivers consistent performance across all observing categories without breaking the bank at nearly $300 less. Given that both telescopes score poorly for astrophotography and deep sky work, neither excels at specialized pursuits. However, the EvoStar 80's combination of better portability, lower price, superior planetary capabilities, and comparable overall performance makes it the smarter investment for active amateur astronomers.
Why choose Sky-Watcher EvoStar 100
No significant advantages identified.
Why choose Sky-Watcher Sky-Watcher EvoStar