We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Blush pink desktop calculator with mechanical keys and large LCD display at 15° tilt

HP 12 Digit Desk Calculator Blush Pink Mechanical 688H 6.2 x 5.6 x .1 in

SKU CH-J7GS-634AY

A 12-digit desk calculator with a true mechanical keypad, removable keycaps, and a 15-degree tilt display powered by solar and battery

  • TypeTime Clock
  • FeaturesBattery Powered/Solar Powered, LCD, Real mechanical L, Stand
  • ColorPink
  • Finish/SurfaceMetal
  • Sizes/Dimensions1
  • Quantity1 each
  • True mechanical keyboard with Blue switches for tactile feedback
  • 12-digit large LCD display for clear calculation viewing
  • Dual solar and battery power with 10-minute auto shutoff
  • 15° ergonomic tilt angle for comfortable desktop use
  • Blush pink metal finish in compact 6.2 x 5.6 x .1 inch design

HP 12-Digit Mechanical Calculator

The HP 688H is a 12-digit desktop calculator with a real mechanical keypad using Blue switches and removable keycaps. A large LCD sits above a 15-degree tilted chassis finished in blush pink metal. Dual solar and battery power keeps it running, while auto shut-off activates after 10 minutes of inactivity.

Upgrading from membrane or basic solar models

Users moving from standard rubber-dome calculators gain tactile feedback and audible clicks for faster, more accurate data entry. The jump is worth it when daily workloads involve long columns of figures or financial functions such as M+, M-, GT and square root. The limited-edition colourway also suits gift buyers wanting a distinctive desk accessory.

Compatibility checks before ordering

Verify that a 6.2 by 5.6 by .1 inch footprint fits the intended workspace. Confirm the .299 kg weight is acceptable for portable use. Ensure the operating environment provides enough ambient light for the solar panel to supplement the built-in battery. No software or driver installation is required.

Highlights

  • True mechanical keyboard with Blue switches for tactile feedback
  • 12-digit large LCD display for clear calculation viewing
  • Dual solar and battery power with 10-minute auto shutoff
  • 15° ergonomic tilt angle for comfortable desktop use
  • Blush pink metal finish in compact 6.2 x 5.6 x .1 inch design

Specifications

TypeTime Clock
BrandHP
FeaturesBattery Powered/Solar Powered, LCD, Real mechanical L, Standard Function, Blush Pink
ColorPink
Finish/SurfaceMetal
Sizes/Dimensions1
Quantity1 each
Specifications6.2 L x 5.6 W x 0.1 H inches, 0.299 kilograms, Battery Powered/Solar Powered, LCD, Blush Pink, Real mechanical L, 688H, NGIFERA
Parts1 Year
Labor1 Year

Questions about this item

How much desk space does the 6.2 x 5.6 x .1 in calculator occupy?

It needs a flat area at least 6.2 inches deep by 5.6 inches wide and sits only .1 inch high, so it fits in narrow shelves or between a keyboard and monitor.

How do I power the 688H for the first time, and what step do users often miss?

Pull the battery-insulator tab, then place the unit where the solar panel receives light; the common miss is leaving the tab in, which keeps the calculator dead even under bright light.

When and how should I replace the power source on this dual-powered model?

If the display dims or auto-shutoff triggers before 10 minutes of inactivity, swap the built-in button cell; the solar cell needs no replacement, only occasional cleaning.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.