HP · Voyager · July 2023 to today

HP 15C Collector's Edition

Twelve years after the Limited Edition, the 15C came back again. HP's licensees Moravia Consulting and Royal Consumer Information Products announced the Collector's Edition in May 2023 and shipped it that July, built in the Philippines. It's the 15C with more room: 672 bytes of program memory and up to 99 registers, against 448 lines and 67 on the original, and the handbook says typical operations run 10 to 20 times faster. The contrast is adjustable now, and the firmware fixes the LE's bugs. A hidden menu even holds a mode that emulates the HP-16C. It's still on sale new, so a used one only makes sense below the new price.

Good forEngineering Learning RPN

Spec at a glance

Maker: HP
Type: Voyager
Launched: 2023
Made: July 2023 to today
Entry: RPN
Display: LCD
Programmable: Yes
Made by: HP's licensees Moravia Consulting and Royal Consumer Information Products; built in the Philippines
Memory: 672 bytes of program memory, up to 99 registers
Speed: Typical operations 10 to 20 times faster than the original (handbook)
Power: Two CR2032 coin cells
Also listed as: HP 15c CE, HP 15C CE, HP 15C Collectors Edition
Typical eBay ask (Oct 15, 2026): $170–$240

Bench check

Power, memory, display and keys

Battery and power: Two CR2032 coin cells. The handbook warns that long programs on weak batteries can lose memory, because the processor runs flat out while a program runs.
Memory: More than the original: 672 bytes for programs and up to 99 registers, so g MEM shows 19 78 00-0 where an original shows 19 46 0-0.
Display: The Voyager 10-digit LCD, now with adjustable contrast.
Keys: The 15C keyboard. The old self-tests don't work; hold g and ENTER while pressing ON for the test menu, which checks the display, the firmware and the keys. There's a recessed reset button under the left battery.
Original, reissue or clone: Collector's Edition is printed on the front, there's no Hewlett-Packard text at the bottom left, and the case is a slightly darker brown. SwissMicros, which v1 of this site credited with it, had nothing to do with it; its DM15 is a separate clone.

Should come with it

The box and handbook

Check the listing photos against this list, and ask the seller about anything you can’t see. A missing piece should come off the price.

What to check

Long programs on weak batteries can lose memory, per the handbook. Otherwise check the coin cells and every key.

01MEM test: Ask the seller to press g then MEM. 19 78 00-0 confirms a Collector's Edition.
02Self-test: Ask for the test menu by holding g and ENTER while pressing ON. A menu offering the display, checksum and keyboard tests is what you want.
03Markings: Check the photos show Collector's Edition on the front. No Hewlett-Packard text at the bottom left goes with it.
04Keys: Ask whether every key registers once per press. No dead or doubled keys is what you want.
05Battery compartment: Ask for a photo with the door off. Two clean CR2032 cells are what you want.

New to old calculators? The condition checklist covers battery corrosion, displays, keys and card readers, and RPN in one hour gets you typing on an HP.

Buying guide

Which one to buy

§ Oct 15, 2026

We'd buy the Collector's Edition shipping from the UK at $150 delivered, $110 less than the US listing titled new. Only two are listed, so the $170-240 band isn't a market read, and the CE is still sold new, so a secondhand one only makes sense well under the new price. Both photos are stock-style shots of the retail box, so ask for a photo of the actual calculator showing Collector's Edition on the front. If it's been opened, ask the seller to press g then MEM, where 19 78 00-0 confirms a CE.

Listed now: 2
For parts: 0
Typical ask: $170–$240
Full range: $127–$250

Cheapest
$150.43est. delivered
The lower ask at $150 delivered, shown in its retail box. It ships from the UK and the photo looks like a stock shot, so ask whether it's sealed and for a photo of the actual box.
Hewlett Packard HP 15c Collector's Edition Scientific Programmable Calculator
View on eBay ↗: Hewlett Packard HP 15c Collector's Edition Scientific Programmable Calculator$150.43 est. delivered
Best for beginners
$259.90est. delivered
Titled new, from a US seller with 100% feedback and shipping quoted, at $260 delivered. Pay this to get it fast from the US; the UK one saves $110.
*NEW* HP 15C CE RPN Scientific Calculator - Collector’s Edition
View on eBay ↗: *NEW* HP 15C CE RPN Scientific Calculator - Collector’s Edition$259.90 est. delivered

Delivered prices include shipping as eBay quoted it to a US address on Oct 15, 2026. Many sellers charge by distance, so your total may differ. eBay shows yours before you pay.

Snapshot

For sale on eBay

2 of 2 listed

Checked Oct 15, 2026. Some may have sold.

Delivered prices include shipping as eBay quoted it to a US address on Oct 15, 2026. Many sellers charge by distance, so your total may differ. eBay shows yours before you pay.

New
- Cheapest
Hewlett Packard HP 15c Collector's Edition Scientific Programmable Calculator
$150.43est. delivered
$127.17 + $23.26 shipping
Buy It Now$127.17
Good buy
Stock-style photo of the retail box. Ships from the UK.
Seller: science_studio
99.7% positive
View on eBay ↗: Hewlett Packard HP 15c Collector's Edition Scientific Programmable Calculator
New
- Best for beginners
*NEW* HP 15C CE RPN Scientific Calculator - Collector’s Edition
$259.90est. delivered
$249.95 + $9.95 shipping
Buy It Now$249.95
Good buy
Titled new. Stock-style photo of the retail box.
Seller: w4technologies
100% positive
View on eBay ↗: *NEW* HP 15C CE RPN Scientific Calculator - Collector’s Edition

Prices change daily. The live eBay search shows everything listed now, including anything new since Oct 15, 2026.

See every listing on eBay ↗eBay search

Compare with

HP 15C Collector's Edition

Spec at a glance

Maker

Type

Voyager

Launched

2023

Made

July 2023 to today

Entry

RPN

Display

LCD

Programmable

Yes

Made by

HP's licensees Moravia Consulting and Royal Consumer Information Products; built in the Philippines

Memory

672 bytes of program memory, up to 99 registers

Speed

Typical operations 10 to 20 times faster than the original (handbook)

Power

Two CR2032 coin cells

Also listed as

HP 15c CE, HP 15C CE, HP 15C Collectors Edition

Typical eBay ask (Oct 15, 2026)

$170–$240

Power, memory, display and keys

Battery and power

Two CR2032 coin cells. The handbook warns that long programs on weak batteries can lose memory, because the processor runs flat out while a program runs.

Memory

More than the original: 672 bytes for programs and up to 99 registers, so g MEM shows 19 78 00-0 where an original shows 19 46 0-0.

Display

The Voyager 10-digit LCD, now with adjustable contrast.

Keys

The 15C keyboard. The old self-tests don't work; hold g and ENTER while pressing ON for the test menu, which checks the display, the firmware and the keys. There's a recessed reset button under the left battery.

Original, reissue or clone

Collector's Edition is printed on the front, there's no Hewlett-Packard text at the bottom left, and the case is a slightly darker brown. SwissMicros, which v1 of this site credited with it, had nothing to do with it; its DM15 is a separate clone.

Should come with it

The box and handbook

Check the listing photos against this list, and ask the seller about anything you can’t see. A missing piece should come off the price.

What to check

Long programs on weak batteries can lose memory, per the handbook. Otherwise check the coin cells and every key.

01MEM test: Ask the seller to press g then MEM. 19 78 00-0 confirms a Collector's Edition.

02Self-test: Ask for the test menu by holding g and ENTER while pressing ON. A menu offering the display, checksum and keyboard tests is what you want.

03Markings: Check the photos show Collector's Edition on the front. No Hewlett-Packard text at the bottom left goes with it.

04Keys: Ask whether every key registers once per press. No dead or doubled keys is what you want.

05Battery compartment: Ask for a photo with the door off. Two clean CR2032 cells are what you want.

New to old calculators? The condition checklist covers battery corrosion, displays, keys and card readers, and RPN in one hour gets you typing on an HP.

HP 15C Collector's Edition

Spec at a glance

Power, memory, display and keys

What to check

Which one to buy

For sale on eBay

Hewlett Packard HP 15c Collector's Edition Scientific Programmable Calculator

NEW HP 15C CE RPN Scientific Calculator - Collector’s Edition

Compare with

HP-15C (original)

HP 15C Limited Edition

HP-16C Computer Scientist

HP-11C

Keep exploring

HP 15C Collector's Edition

Spec at a glance

Power, memory, display and keys

What to check

Which one to buy

For sale on eBay

Hewlett Packard HP 15c Collector's Edition Scientific Programmable Calculator

NEW HP 15C CE RPN Scientific Calculator - Collector’s Edition

Compare with

HP-15C (original)

HP 15C Limited Edition

HP-16C Computer Scientist

HP-11C

Keep exploring

Spec at a glance

Power, memory, display and keys

What to check

Which one to buy

For sale on eBay

Hewlett Packard HP 15c Collector's Edition Scientific Programmable Calculator

*NEW* HP 15C CE RPN Scientific Calculator - Collector’s Edition

Compare with

HP-15C (original)

HP 15C Limited Edition

HP-16C Computer Scientist

HP-11C

Keep exploring

Spec at a glance

Power, memory, display and keys

What to check

Which one to buy

For sale on eBay

Hewlett Packard HP 15c Collector's Edition Scientific Programmable Calculator

*NEW* HP 15C CE RPN Scientific Calculator - Collector’s Edition

Compare with

HP-15C (original)

HP 15C Limited Edition

HP-16C Computer Scientist

HP-11C

Keep exploring

NEW HP 15C CE RPN Scientific Calculator - Collector’s Edition

NEW HP 15C CE RPN Scientific Calculator - Collector’s Edition