4G LTE vs 5G
Side-by-side comparison, when-to-use-each guide, and instant conversion. Reviewed for 2026.
Existing device without 5G, areas without 5G coverage (still ~40% of UK land area).
Urban areas, 5G-compatible device, heavy streaming/downloads on mobile, remote working on the go.
| Aspect | 4G LTE | 5G |
|---|---|---|
| UK average speed | 35-50 Mbps | 150-300 Mbps (sub-6) / 1000+ (mmWave) |
| Latency | 30-50ms | 5-10ms |
| UK population coverage | 99% | ~80% |
| Battery impact | Standard | Higher (improving) |
| Device requirement | Any smartphone post-2014 | 5G chipset required |
Frequently asked
Is 5G worth upgrading for in 2026?
If your phone is due for replacement anyway, yes — 5G is now standard in mid-range phones at no premium. If you're happy with your phone, 4G is sufficient for all consumer use cases: streaming 4K video needs only 25 Mbps.
Does 5G cause health problems?
No. 5G uses non-ionising radio frequency radiation — the same type as 4G, 3G, Wi-Fi and FM radio. The WHO has found no evidence of health effects from RF fields below international safety guidelines. 5G's frequencies don't have the energy to break chemical bonds.
Frequently asked questions
Is 5G worth upgrading for in 2026?
If your phone is due for replacement anyway, yes — 5G is now standard in mid-range phones at no premium. If you're happy with your phone, 4G is sufficient for all consumer use cases: streaming 4K video needs only 25 Mbps.
Does 5G cause health problems?
No. 5G uses non-ionising radio frequency radiation — the same type as 4G, 3G, Wi-Fi and FM radio. The WHO has found no evidence of health effects from RF fields below international safety guidelines. 5G's frequencies don't have the energy to break chemical bonds.