Seoul logs 97 frost days a year to Tokyo's 20 — Tokyo wins by 77. Seoul also leads on hot days by 22.

Seoul runs about $1,853/mo for a balanced lifestyle against Tokyo's $2,157/mo — Seoul comes in $304 cheaper each month, roughly 16% less.

On mobility, Seoul scores 4.6 vs Tokyo's 4.2 (0–5 scale), with the biggest gap on cycling infrastructure. Tokyo still holds an edge on motorbike/scooter efficiency.

Seoul and Tokyo score neck-and-neck on culture (3.1 vs 3.2, 0–5 scale).

Seoul and Tokyo score neck-and-neck on nature & outdoors (4.3 vs 4.3, 0–5 scale).

Tokyo's safety score of 4.7 sits well above Seoul's 4.1, with the biggest gap on property crime safety. Seoul still holds an edge on earthquake safety.

Seoul and Tokyo score neck-and-neck on career (4.3 vs 4.4, 0–5 scale).

Seoul's social & community score of 2.8 sits well above Tokyo's 2.4, with the biggest gap on expat-first community.

On food & dining, Tokyo scores 4.2 vs Seoul's 4.0 (0–5 scale), with the biggest gap on restaurant variety.

Seoul and Tokyo score neck-and-neck on family (4.1 vs 4.0, 0–5 scale).

On healthcare, Seoul scores 4.1 vs Tokyo's 3.0 (0–5 scale), with the biggest gap on private healthcare quality. Tokyo still holds an edge on public healthcare quality.

Seoul averages 26.6 µg/m³ (unhealthy) PM2.5 annually versus Tokyo's 14.5 µg/m³ (moderate) — Tokyo breathes ~46% cleaner air (12.1 µg/m³ lower).

Who Thrives Here