NEO$ and GAS$ are linked to each other within the Neo blockchain network, but each has a different function:

1. NEO:

Represents a stake in the NEO network and gives its holder the right to vote on the development of the network.

It is indivisible (i.e. there are no fractions like 0.5 NEO, it must be integers).

It is the main currency for investing in NEO projects and holding it gives you rewards.

2. GAS:

It is used to pay transaction fees and execute smart contracts within the NEO network.

It is generated automatically when holding NEO in a wallet that supports GAS generation.

It can be divided into smaller parts, making it more flexible for daily use.

The relationship between them:

When holding NEO in a wallet that supports the network, GAS is generated over time.

GAS is the fuel that powers smart applications and transactions on the Neo blockchain, while NEO represents ownership of the network.

GAS can be used to pay transaction fees or exchanged for other currencies.

If you own NEO, you can earn GAS passively, making it a good investment opportunity for some.