We had a chance to test and compare two models: Nebula Capsule vs Optoma HD27 and this review should help people who are looking for a good projector. Based on our rating, Capsule has a total rating of 6.3 out of 10 versus 7 for HD27.
Advantages Nebula Capsule over Optoma HD27
Wireless connection enabled
Longer lamp life (normal mode): 30000 vs 5000 hours
Advantages Optoma HD27 over Nebula Capsule
Bigger projection screen size: 30-300 inch vs 20-100 inch