Top 5 compared
The best alarm clocks
Up on time every morning, with a clear time on the nightstand and an alarm you can rely on.
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The top 5 at a glance
A bedside alarm clock lets the phone charge in another room, and a good one can be read in the night without lighting up the bedroom. Plug-in clocks have big LED digits that dim right down; battery clocks sit anywhere without a cord; a projection clock puts the time on the ceiling, for a glance up from the pillow.
Some have a USB port to charge a phone overnight, which saves the outlet behind the nightstand, and some a DST switch that moves the time an hour without resetting anything. Every display dims and most switch off entirely; for a heavy sleeper, the Odokee’s sounds climb to 110dB.
What matters
- Backup batteries, so the alarm still sounds in a power outage.
- Digits big enough to read across the room without glasses.
- Buttons on the front or top, for snoozing in the dark.
- An alarm that starts soft and builds, rather than a sudden blare.
#1DreamSky Wooden Digital Alarm Clock (DS2201)
$10–$20
A wood-grain face with 1.8 in LED digits that read clearly across the room, five brightness levels plus off, and an alarm that goes from very quiet for light sleepers to extra loud. A USB port charges a phone overnight.
What owners say: Owners like the wood-grain look and digits they can read from across the room at night, and find it simple to set, with a dimmer that turns down to suit the bedroom.
A closer look: It runs from the outlet, so the two AAA batteries (not included) only keep the alarm going in a power outage, with the display dark. A DST button moves the time an hour forward in spring and back in the fall without resetting anything.
- USB port charges a phone
- One-button daylight saving change
- 9-minute snooze
- 12- or 24-hour time
Best for: A warm wood look
- Power
- Plug-in, 2 x AAA backup
- Display
- LED, 5 levels + off
- Alarm
- 5 volumes
- Alarm works in a power outage
- Yes
#2Acedeck Battery-Operated Digital Alarm Clock (T01)
$10–$20
No cord to plan around: four AA batteries run it, so it can sit on a nightstand nowhere near an outlet, on a kitchen shelf or in a suitcase, and it keeps time and wakes you through a power outage. The soft red digits dim themselves as the room gets dark.
What owners say: Owners can read it at a glance from bed, day or night, and set it up without fuss. They like having the choice of batteries or a plug, and that it kept good time through power outages.
A closer look: Fit four brand-name alkaline AA batteries, as Acedeck advises, rather than rechargeables. Auto-dim softens the digits once the lights go off, the display can be switched off for a fully dark room, and a USB-C cable (adapter not included) keeps it running in a permanent spot.
- Use alkaline AAs, not rechargeables
- Packs into a suitcase
- Daylight saving time switch
- USB-C adapter not included
- 18-month warranty
Best for: Anywhere without an outlet
- Power
- 4 x AA or USB-C
- Display
- Red LED, auto-dim, 3 levels + off
- Alarm
- 3 volumes
- Alarm works in a power outage
- Yes
#3Netzu 3-in-1 Digital Alarm Clock with Date and Temperature (T338B)
$10–$20
The time, the date and the indoor temperature on one small black display. With four brightness levels plus off and an alarm with three volumes, it does the bedside job, and it’s just as handy under the TV now the cable box with its clock has gone.
What owners say: Owners can read it across the bedroom without their glasses and found the time and date simple to set. They like the temperature readout and a display that works in any light, and several call it a good value.
A closer look: Turning the display down at bedtime takes a single press of the button on top, with no menus to dig through, and another press or two switches it off for a fully dark room. At under 6 in wide it fits a crowded nightstand, a desk or a shelf.
- One-button dimmer on top
- Under 6 in wide
- Works under the TV too
- Snooze button
Best for: Date and temperature at a glance
- Power
- Plug-in
- Display
- LED, 4 levels + off
- Alarm
- 3 volumes
- Alarm works in a power outage
- –
#4Odokee Digital Alarm Clock with Night Light (U2)
$10–$20
Two-inch digits on a silver face, five wake-up sounds from birdsong to a siren that build from gentle to as loud as 110dB, and a night light in any of eight colors. All the buttons are on the front, so there’s no reaching around the back in the dark.
What owners say: Owners can read the big numbers across the room without their glasses, like having several brightness levels and alarm sounds to choose from, and enjoy the soft color-changing light at bedtime.
A closer look: Set the volume low for a light sleeper or near the top for a heavy one, since each sound starts soft and climbs to the level you choose. The night light dims or switches off just like the digits, and the display shows 12- or 24-hour time.
- 8-color night light
- All buttons on the front
- Birdsong to siren sounds
- Each sound builds gently
- USB charging port
Best for: Light and heavy sleepers
- Power
- Plug-in, 2 x AAA backup
- Display
- LED, 5 levels + off
- Alarm
- 5 sounds, 30–110dB
- Alarm works in a power outage
- Yes
#5GOLOZA Projection Alarm Clock (blue)
$10–$20
Puts the time up on the ceiling or the wall, so a glance up from the pillow is enough, without rolling over or reaching for glasses. The projector arm swivels through 180° and stays sharp from about 1.6 to 11 ft with no focusing, and there’s a curved LED display on the front as well.
What owners say: Owners like the look, the choice of brightness and having the time up on the ceiling, and find it easy to set up and to read in the dark. Several mention how well it suits a child’s or a teenager’s room.
Heads up: In a power outage the coin cell only keeps the time and alarm settings: the display goes dark and the alarm won’t sound until the power is back.
A closer look: The front display and the projection dim separately, so the ceiling numbers can stay soft while the face is turned right down. Aim the arm at a plain, pale patch of ceiling for the crispest numbers, and a phone can charge from the USB port overnight while the clock has the outlet.
- 180° swivel projector arm
- Projection needs no focusing
- Face and projection dim separately
- Curved front display
- USB port charges a phone
Best for: Checking the time without sitting up
- Power
- Plug-in, coin-cell memory backup
- Display
- Blue LED, 3 levels, plus projection
- Alarm
- Builds up, to 75dB
- Alarm works in a power outage
- No
How they compare
Swipe sideways or rotate device to see all 5.
| Feature | #1DreamSky wooden | #2Acedeck T01 | #3Netzu 3-in-1 | #4Odokee U2 | #5GOLOZA projection |
|---|---|---|---|---|---|
| Best overall | Best cordless | Best budget | |||
| Picked Rating | 9.3 | 9.2 | 9.0 | 9.0 | 9.0 |
| Price | $10–$20 | $10–$20 | $10–$20 | $10–$20 | $10–$20 |
| Power | Plug-in, 2 x AAA backup | 4 x AA or USB-C | Plug-in | Plug-in, 2 x AAA backup | Plug-in, coin-cell memory backup |
| Display | LED, 5 levels + off | Red LED, auto-dim, 3 levels + off | LED, 4 levels + off | LED, 5 levels + off | Blue LED, 3 levels, plus projection |
| Alarm | 5 volumes | 3 volumes | 3 volumes | 5 sounds, 30–110dB | Builds up, to 75dB |
| Alarm works in a power outage | Yes | Yes | – | Yes | No |
| Best for | A warm wood look | Anywhere without an outlet | Date and temperature at a glance | Light and heavy sleepers | Checking the time without sitting up |
| Buy now | Amazon | Amazon | Amazon | Amazon | Amazon |
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