H3 hexagons explained
Uber's hierarchical geospatial index, from base cells to resolution 15 — how the system is built and why that shape of grid is the one you want.
H3 & geospatial, in depth.
Longer pieces on H3 fundamentals, comparisons with other spatial indexes, and the use cases that make hex grids worth the effort.
H3 vs. Geohash vs. S2
Three spatial indexes, three different tradeoffs. When each one earns its place, and why the "obvious" choice isn't always right.
When to use H3 in analytics
Ride-share zones, delivery heatmaps, demand forecasting, service areas. The patterns that come up over and over when H3 is in your stack.