wattaire
Apple
40W
C
40W Dynamic Power Adapter (60W Max)
Apple · A3351
vs
Belkin
45W
CC
BoostCharge Pro 45W Dual USB-C GaN
Belkin · WCH011
The short version
Apple does not publish how it divides power between ports, so a like-for-like comparison stops there.
Belkin is the cheaper watt: 0.55 €/W against 1.13 €/W.
We know Apple better: 9.6/10 documentation against 7.5.
Size, true to scale
front and side, one scale
20
40
size not published
46×46×28 mm
59 cm³ · 80 g
not published
— · weight not published

Solid block is the face you see in the socket; the outline next to it is depth.

Power by situation
bars share one scale · 60 W
One device, best port
60 W
45 W
What a laptop gets when nothing else is plugged in.
Two devices at once
not published
25 + 20 W
The best published pair, which is rarely an even split.
Three devices at once
not enough ports
not enough ports
Everything plugged in together.

Port layouts differ, so we compare what you would do with the charger, not port pairs. Each row takes the best published combination for that situation.

Field by field
Apple
Belkin
Total output
40 W
45 W
Ports
1×C
2×C
Volume
smaller is better
59 cm³
not published
Weight
smaller is better
80 g
not published
Power density
0.68 W/cm³
—
PPS
No
Yes
EPR
over 100 W
No
No
Folding plug
Yes
Yes
Price per watt
net of VAT
0.95 €/W
0.46 €/W
Documentation
9.6/10
7.5/10

marks the better value in that row. Ties, missing data and class differences get no mark.

Offers
EUR · incl. 19% VAT
€45.00
Apple Store (DE)
See at retailer
€24.86
Geizhals
See at retailer