Hong Kong Indoor 5G Gap Shows Building-Level Network Divide
A Speedtest Intelligence study says Hong Kong’s indoor 5G experience varies sharply by building, putting the focus on shared in-building systems rather than outdoor coverage alone.
Hong Kong’s 5G network reaches more than 99% of the population, but a new building-level study shows that coverage does not guarantee the same service inside towers, malls, offices, and transport hubs.
Speedtest Intelligence used the territory-wide figure as the baseline for measuring indoor performance.
This comparison shifts the question from whether 5G reaches a district to how well it works once users move inside dense vertical buildings.
Building Data Shows The Indoor Gap
The Speedtest Intelligence indoor sample covers more than 760 buildings across shopping malls, residential estates, offices, transit hubs, and hotels.
It separates performance by building, region, and operator, rather than treating the territory as one coverage map.
The dataset lists an all-operator median 5G download speed of 167.37 Mbps and an all-operator median upload speed of 27.98 Mbps.
Those medians hide the building-level spread.
The slowest 10% of measured buildings recorded 43.02 Mbps for median 5G download speed, while the fastest 10% reached 479.97 Mbps.
Regional medians varied less than the building-level results.
Indoor differences stem from signal penetration, in-building systems, and available capacity.
Signal And Infrastructure Drive The Result
The signal data points to the same conclusion.
Speedtest Intelligence's signal analysis shows that the average 5G SS-RSRP across the four major operators was -89.5 dBm, a level between good and fair coverage.
Reinforced concrete, tinted low-emissivity glass, and high-rise layouts can weaken mid-band and high-band 5G signals from outdoor macro cells.
Dedicated in-building systems, including distributed antenna systems and small cells, become the main way to improve indoor capacity.
Shared Systems Narrow The Venue Gap
Ookla's selected-venue review covered 16 prominent buildings with enough operator-level samples for stable readings.
Public venues with shared infrastructure, including Hong Kong International Airport Terminal 1 and the Hong Kong Convention and Exhibition Centre New Wing, showed more consistent multi-operator performance.
Private estates and towers showed a sharper split.
The self-reported selected-venue review states that gaps reached 80-fold between the best and worst operator result in some buildings.
The selected-venue result links indoor 5G experience to property access, deployment choices, and whether infrastructure is shared across carriers.
The regulatory framework is changing.
The Telecommunications (Amendment) Ordinance 2024 grants mobile operators statutory access to designated infrastructure space in newly approved buildings from April 2025 without access fees.
The study does not provide upgrade costs, ownership terms for shared systems, or operator participation plans for older buildings.
A concrete public-record gap remains regarding the timetable for improving indoor 5G in existing properties.
