G1 and NEO address different buyers: developer/research access versus a home-focused consumer proposition.
Buying status
Start with what each manufacturer actually offers buyers today. Market status is often more useful than comparing prototype demonstrations.
Specifications and intended use
Use the linked RobotPickr profiles for current structured specifications and primary manufacturer sources.
Which should you research?
The right choice depends on whether you need a home product, research platform or commercial deployment, plus your country, budget and required tasks.