Sonic Alert Sonic Boom Dual review

The Sonic Boom Dual is Sonic Alert's newer take on its big bedside clock. The product page lists a 113 dB alarm and an extra-strength 12V bed shaker, and claims 60% less energy use than earlier designs. The user guide (model SBD375SSG) covers two alarms, a choice of sound, bed shaker or both, an alarm duration of 1 to 59 minutes and a snooze from 1 to 30 minutes, plus a dimmer switch and a 9-volt backup battery, sold separately, that keeps time for up to 30 days in a power cut. In practice it does the same core job as the Sonic Bomb: the shaker under your mattress wakes you without sound if you set it to vibration only. What it leaves out is the separate strobe lights of the Sonic Bomb; the guide describes a flashing display instead. When checked it cost $51.99 on sonicalert.com, down from $77.99, so it is a few dollars more than the Sonic Bomb.

Who it is for

Heavy sleepers who do not need strobe lights

Price

$51.99 on sonicalert.com when checked (list price $77.99).

$77.99 . Final price: $51.99
Quoted from the vendor pricing page on November 12, 2026.

Key features

• 113 dB alarm with tone and volume wheels
• Extra-strength 12V bed shaker
• Two alarms with sound, vibration or both
• Snooze settable from 1 to 30 minutes
• Dimmer switch and a backup battery compartment

Strengths and weaknesses

• Strength: Same 113 dB rating as the Sonic Bomb
• Strength: Sonic Alert states 60% less energy use
• Strength: Alarm runs up to 59 minutes if you do not wake
• Weakness: No strobe lights; the display flashes instead
• Weakness: Costs $7 more than the Sonic Bomb when checked
• Weakness: Needs mains power for normal use

Key facts

• Alarm volume: 113 dB
• Bed shaker: 12V extra-strength
• Alarms: 2
• Model: SBD375SSG

Where it ranks

Sonic Alert Sonic Boom Dual is No. 2 in our Best Vibrating Alarm Clocks verdict.