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  3. 813 vs RT668

NXGKET 813 vs Retevis RT668

What 813 does better (3) and where RT668 wins (0) — every spec side by side.

NXGKET 813
NXGKET · 2026813
7.2Score
3 advantages≈ £30
Higher score
vs
Retevis RT668
Retevis · 2026RT668
4.6Score
0 advantages≈ £35
6.2Range & power5.4
6.6Battery3.6
Dimensions

Size comparison

813RT668
30 × 60160116 × 5035
813RT668Difference
Height60 mm50 mm+10 mm
Width30 mm116 mm−86 mm
Depth160 mm35 mm+125 mm
Weight93 g161 g−68 g

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

Why is 813 better than RT668?

  1. USB-C chargingYes · RT668: No
  2. Weight93 g vs 161 g+73%
  3. DisplayBacklit display vs No display

Why is RT668 better than 813?

RT668 has no measurable advantages in this pair.

Specifications

Side by side

NXGKET 813NXGKET 813≈ £307.2
Retevis RT668Retevis RT668≈ £354.6
Radio & range
Radio standardsPMR446PMR446
LicenceLicence-freeLicence-free
Digital mode (DMR / dPMR)NoNo
Frequency ranges446 MHz446 MHz
Transmit power0.5 W0.5 W
Channels1616
Maximum range (claimed)8 km—
CTCSS / DCS sub-tonesYesYes
Squelchadjustableadjustable
Call tones10—
Power & battery
Battery capacity1,200 mAh1,200 mAh
Battery voltage3.7 V3.7 V
Power sourceRechargeable packRechargeable pack
USB-C chargingYesNo
Battery level indicatorYesYes
Design & durability
Weight93 g161 g
Width30 mm116 mm
Height60 mm50 mm
Depth160 mm35 mm
ShockproofYesYes
DisplayBacklit displayNo display
Features
VOX (hands-free)YesYes
VOX sensitivity levels3—
Channel scanYesYes
FlashlightYes—
Key lockYes—
Monitor buttonYesYes
Voice encryption / scrambler—Yes
PC programmable—Yes
Connectivity
Headset / earpiece jack—Yes
ConnectorsUSB-C2,5 und 3,5 mm
Radios in the base pack3—
To compare: 0up to 4 models
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