
Segway
Ninebot Max G3
Durable hill-climber; heavy with limited range.

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How much do you weigh? That will be a big factor as well. However, I would go with something that is dual motor, which would be the Apollos. I live in Seoul and the city is full of hills. I got a decent dual motor scooter here locally and it handles most hills like a champ. I ride it in single motor mode majority of the time and only engage dual motor when I need to.
End of reviews

Segway
Ninebot Max G3
Durable hill-climber; heavy with limited range.

Ausom
DT2 Pro
Budget speed demon with hydraulic brakes; slow charging.

Inmotion
Climber
Hill climbing champ, great value, but lacks suspension.

Segway
Ninebot KickScooter MAX G30P
Durable, mod-friendly value, but lacks suspension; tire changes hard.

Segway
Ninebot MAX G30LP
Durable, budget commuter, but slow on inclines and no suspension.

Ranked #1
Inmotion - Climber

Ranked #1
Inmotion - Climber

Ranked #1
NIU - KQi Air

Ranked #1
Segway - GT3 Pro

Ranked #1
Segway - ZT3 Pro

Ranked #1
Segway - Ninebot Max G3