Pair comparison
Used vs. new smartphone (per year)
One year of use
Buying a used phone distributes the manufacturing environmental burden across more users. Manufacturing is a phone's biggest environmental impact.
Dimension-by-dimension comparison
One year of use — absolute values
Both items scaled to the same unit (one year of use). Lower value = lower environmental impact.
| Dimension | Used | new smartphone (per year) | Difference | Lower |
|---|---|---|---|---|
| Carbon Emissions | 3.5 kg CO₂e | 23.0 kg CO₂e | −19.5 | ← item 1 |
| Water Consumption | 25.0 liters | 4000.0 liters | −3975.0 | ← item 1 |
| Land Use | 0.0 m²·year | 0.3 m²·year | −0.3 | ← item 1 |
| Waste | 0.02 kg | 0.06 kg | −0.04 | ← item 1 |
| Toxicity | 1.5 µDALY | 10.0 µDALY | −8.5 | ← item 1 |
Visual comparison
Carbon Emissions
Used
3.5
new smartphone …
23.0
Water Consumption
Used
25.0
new smartphone …
4000.0
Land Use
Used
0.0
new smartphone …
0.3
Waste
Used
0.02
new smartphone …
0.06
Toxicity
Used
1.5
new smartphone …
10.0
Where do the numbers come from?
Click an item to see the detailed calculation, sources, and confidence rating.