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  3. D20 vs GravaStar Mars

Draper D20 vs Zoeao GravaStar Mars

What D20 does better (3) and where GravaStar Mars wins (1) — every spec side by side.

Draper D20
Draper · 2021D20
3 advantages
vs
Zoeao GravaStar Mars
Zoeao · 2021GravaStar Mars
3.7Score
1 advantage≈ $65
Higher score
3.8Sound3.4
Dimensions

Size comparison

D20GravaStar Mars
123 × 183145180 × 190.5201
D20GravaStar MarsDifference
Height183 mm190.5 mm−7.5 mm
Width123 mm180 mm−57 mm
Depth145 mm201 mm−56 mm
Weight820 g2,100 g−1,280 g

Drawn to the same scale from the official dimensions (front and side).

Why is D20 better than GravaStar Mars?

  1. Weight820 g vs 2,100 g2.6×
  2. Channel count2 vs 12×
  3. StereoYes · GravaStar Mars: No

Why is GravaStar Mars better than D20?

  1. Output power6 W vs 20 W3.3×
Specifications

Side by side

Sound
Output power6 W20 W
Speaker channels2.01.0
Channel count21
StereoYesNo
Battery & charging
Battery life—20 h
Mains poweredNoNo
Battery powered (portable)YesYes
Connectivity
WirelessYesYes
Bluetooth version—5
Bluetooth codecsSBCSBC
Hi-res codec (LDAC / aptX HD / LHDC)NoNo
aptXNoNo
LDACNoNo
USB-C—Yes
Design & build
Weight820 g2,100 g
Width123 mm180 mm
Height183 mm190 mm
Depth145 mm201 mm
Water resistance (IPx)—IPx4
ColoursBlack, Blue—
Features
Light effects—Yes
To compare: 0up to 4 models
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