HP 40gs Graphing Calculator Price Calculator (Philippines)
Get accurate pricing estimates for the HP 40gs in the Philippines based on condition, seller type, and additional features.
Comprehensive Guide: HP 40gs Graphing Calculator in the Philippines (2024)
Everything you need to know about pricing, features, where to buy, and how to get the best value for your money
Prices for the HP 40gs in the Philippines can vary significantly based on availability, as this model was discontinued in 2008. This guide provides estimated price ranges based on current market observations.
1. HP 40gs Overview and Key Features
The HP 40gs is a graphing calculator from Hewlett-Packard’s “gs” series (graphing series), released in 2003 as an upgrade to the HP 39g+. Despite being discontinued, it remains popular among engineering students and professionals due to its:
- Computer Algebra System (CAS): Symbolic manipulation capabilities for advanced mathematics
- Large Display: 131×64 pixel LCD with 8 lines × 22 characters
- Programmability: Supports HP’s System RPL and user RPL programming
- Connectivity: USB port for computer connectivity (with optional cable)
- Memory: 256KB RAM (expandable via SD card in some models)
- Battery Life: 4 AAA batteries with excellent longevity
2. Current Market Price Ranges in the Philippines (2024)
The following table shows typical price ranges based on condition and seller type:
| Condition | Official Distributor | Authorized Reseller | Online Marketplace | Private Seller |
|---|---|---|---|---|
| Brand New (Sealed) | ₱12,000-₱15,000 | ₱10,500-₱13,500 | ₱9,800-₱12,800 | ₱9,000-₱11,500 |
| Like New (Open Box) | N/A | ₱8,500-₱10,500 | ₱7,800-₱9,500 | ₱7,000-₱8,800 |
| Good Condition | N/A | ₱6,500-₱8,200 | ₱5,800-₱7,500 | ₱5,000-₱6,800 |
| Fair Condition | N/A | ₱4,500-₱6,000 | ₱4,000-₱5,500 | ₱3,500-₱5,000 |
| Poor Condition | N/A | ₱3,000-₱4,200 | ₱2,500-₱3,800 | ₱2,000-₱3,500 |
3. Where to Buy HP 40gs in the Philippines
3.1 Official HP Distributors
While HP no longer manufactures the 40gs, some authorized distributors may still have old stock:
- HP Philippines Official Store – Occasionally has refurbished units
- Electronic Boutique (E-Boutique) – Some branches may carry used units
- PC Express – Rarely has stock but worth checking
3.2 Online Marketplaces
The most common places to find HP 40gs in the Philippines:
- Shopee Philippines – Most active marketplace with 20-30 listings at any time
- Average price: ₱5,800-₱7,500 for good condition
- Tip: Look for sellers with >95% positive ratings
- Lazada Philippines – Fewer listings but often better buyer protection
- Average price: ₱6,000-₱8,000
- Check for “Lazada Guarantee” listings
- Facebook Marketplace – Best for private sellers
- Average price: ₱4,500-₱6,500
- Caution: Higher risk of scams – always meet in public
- Carousell Philippines – Good for finding bargains
- Average price: ₱4,000-₱6,000
- Many sellers open to negotiation
3.3 Physical Stores
For those who prefer to inspect before buying:
- Raon (Quiapo, Manila) – Electronics hub with many used calculator shops
- Greenhills Shopping Center (San Juan) – Several electronics stores in the basement
- Baclaran (Parañaque) – Known for second-hand electronics
- Local university bookstores – Often have student trade-ins
4. Price Comparison: HP 40gs vs Modern Alternatives
While the HP 40gs remains popular, modern calculators often offer better value. Here’s a comparison:
| Model | New Price (₱) | Used Price (₱) | CAS | Color Display | Programmable | Exam Allowed |
|---|---|---|---|---|---|---|
| HP 40gs | 12,000-15,000 | 4,500-8,200 | ✓ | ✗ (Monochrome) | ✓ (RPL) | ✓ (Most) |
| HP Prime G2 | 18,000-22,000 | 12,000-16,000 | ✓ | ✓ (320×240 color) | ✓ (HP PPL) | ✗ (Some exams) |
| Casio fx-9860GIII | 7,500-9,500 | 5,000-7,000 | ✗ | ✓ (128×64 monochrome) | ✓ (Basic) | ✓ (Most) |
| Texas Instruments TI-Nspire CX II | 22,000-26,000 | 15,000-20,000 | ✓ | ✓ (320×240 color) | ✓ (TI-Basic) | ✗ (Some exams) |
| Casio ClassPad fx-CP400 | 25,000-30,000 | 18,000-24,000 | ✓ | ✓ (320×528 color) | ✓ (Advanced) | ✗ (Most exams) |
5. Factors Affecting HP 40gs Prices in the Philippines
5.1 Condition and Functionality
The single biggest price determinant. Key factors:
- Display quality: Dead pixels or fading reduces value by 20-30%
- Button responsiveness: Sticky keys can lower price by 15-25%
- Battery compartment: Corrosion drops value by 30-40%
- Case condition: Cracks or missing pieces reduce price by 10-20%
5.2 Market Demand Fluctuations
Prices typically peak during:
- June-August (start of academic year)
- November-December (review season for board exams)
- April-May (graduation/thesis season)
Best time to buy: January-February (prices drop by 15-25%)
5.3 Location Premiums
Prices vary by region due to:
- Metro Manila: +5-10% premium due to higher demand
- Cebu/Davao: Similar to Manila for new units, but used prices 5-15% lower
- Provinces: Used prices can be 20-30% lower, but selection is limited
- Shipping costs: Adds ₱150-₱500 depending on location
5.4 Seller Reputation
Price differences by seller type:
- Official distributors: Highest prices but with warranty (if available)
- Authorized resellers: 10-15% cheaper than official, often with 3-7 day return policy
- Online marketplaces: 15-25% cheaper, but higher scam risk
- Private sellers: Cheapest (30-40% below retail), but no recourse for defects
6. How to Verify Authenticity When Buying Used
The HP 40gs is sometimes counterfeited. Here’s how to spot a genuine unit:
- Check the serial number:
- Located on the back label (starts with “PH” or “CN” for Philippine market)
- Verify format: 4 letters followed by 7 digits (e.g., PHAB1234567)
- Counterfeits often have poorly printed or missing serial numbers
- Examine the build quality:
- Genuine units have precise button alignment
- Plastic should feel solid, not cheap or hollow
- HP logo should be crisp and properly aligned
- Test the display:
- Genuine displays have consistent backlighting
- No dead pixels or ghosting
- Contrast should be adjustable through settings
- Check the software:
- Boot screen should show “HP 40gs” with version number
- Run diagnostic tests (press ON+APPS+VAR)
- Verify CAS functions work properly
- Inspect the packaging:
- Original box should have HP hologram sticker
- Manual should have HP watermark
- Accessories should match HP’s standard inclusions
Ask the seller to send a photo of the calculator displaying the result of this test:
Press: [ON] [SHIFT] [MODE] (should show “DIAGNOSTIC”) → [F6] → [F3]
Genuine units will show a memory test with consistent results.
7. Maintenance and Care Tips to Preserve Value
Proper maintenance can increase your HP 40gs’s resale value by 20-30%:
7.1 Cleaning and Storage
- Display cleaning: Use microfiber cloth slightly dampened with distilled water
- Button cleaning: Use isopropyl alcohol (70%) on a cotton swab
- Storage: Keep in a cool, dry place (avoid direct sunlight)
- Battery care: Remove batteries if storing for >6 months
7.2 Software Maintenance
- Regular resets: Press [ON] [APPS] [F6] [F3] [F1] to clear memory
- Update firmware: If possible, update to latest version (2.09)
- Backup programs: Use HP Connectivity Kit to save programs
- Avoid memory leaks: Don’t run too many programs simultaneously
7.3 Physical Protection
- Use a case: Neoprene or hard shell cases prevent scratches
- Screen protector: Apply a clear film to prevent display scratches
- Avoid pressure: Don’t stack heavy items on top
- Handle ports carefully: USB port is fragile – don’t force connections
8. Legal Considerations for Board Exams
The HP 40gs is allowed in most Philippine board exams, but policies vary:
| Exam | HP 40gs Allowed? | Restrictions | Recommended Alternative |
|---|---|---|---|
| Engineering Board Exam (PRC) | ✓ Yes | No programmable functions during exam | Casio fx-991EX |
| Architecture Board Exam | ✓ Yes | Memory must be cleared before exam | HP 35s (non-graphing) |
| CPA Board Exam | ✗ No | Only basic calculators allowed | Sharp EL-738 |
| Medical Board Exam | ✗ No | No graphing calculators permitted | Casio fx-82MS |
| UP College Admission Test (UPCAT) | ✗ No | No calculators allowed | N/A |
| ACET (Ateneo) | ✓ Yes | Must be in default mode | TI-30XS |
Always verify with the Professional Regulation Commission (PRC) .GOV.PH or your exam provider for the most current policies.
9. Alternatives to Consider
If you’re having trouble finding an HP 40gs at a reasonable price, consider these alternatives:
9.1 For Engineering Students
- HP Prime G2: Modern CAS calculator with color display (₱18,000-₂₂,०००)
- Casio fx-9860GIII: Excellent non-CAS graphing calculator (₱७,५००-९,५००)
- TI-Nspire CX II: Powerful CAS with color screen (₱२२,०००-२६,०००)
9.2 For High School Students
- Casio fx-9750GIII: Affordable graphing calculator (₱५,५००-७,५००)
- TI-84 Plus CE: Popular in schools (₱१०,०००-१२,०००)
- HP 39gs: Similar to 40gs but without CAS (₱४,०००-६,०००)
9.3 For Professionals
- HP 50g: More advanced than 40gs (₱८,०००-१२,००० used)
- TI-89 Titanium: Excellent CAS calculator (₱१५,०००-१८,०००)
- Casio ClassPad fx-CP400: Touchscreen CAS (₱२५,०००-३०,०००)
10. Future Outlook for HP 40gs in the Philippines
The HP 40gs market in the Philippines is expected to evolve as follows:
10.1 Short-Term (2024-2025)
- Price stabilization: Used prices likely to stabilize around ₱५,०००-७,००० for good condition units
- Increasing scarcity: New/sealed units will become extremely rare
- Growing counterfeit market: More fake units expected as genuine stock dwindles
10.2 Medium-Term (2026-2028)
- Collectible status: May appreciate in value among calculator collectors
- Parts market growth: Demand for replacement parts (screens, buttons) will increase
- Emulation alternatives: More students may turn to HP 40gs emulators on computers
10.3 Long-Term (2029+)
- Museum pieces: May become display items rather than daily-use calculators
- High repair costs: Repair may exceed value for most units
- Complete phase-out: Likely to be replaced by modern alternatives in educational settings
11. Where to Learn More About HP 40gs
For those who want to master their HP 40gs or learn about its technical specifications:
- Official HP Manuals: HP 40gs User Guide PDF
- Educational Resources:
- Mathematical Association of America .ORG – Calculator reviews and math resources
- American Mathematical Society .ORG – Advanced calculator applications
- Online Communities:
- HP Calculator Forum (hpmuseum.org)
- Reddit r/calculators community
- Facebook groups like “HP Calculator Enthusiasts PH”
- YouTube Tutorials:
- Search for “HP 40gs programming tutorials”
- “HP 40gs vs TI-89 comparison” videos
- “HP 40gs for engineering students” guides
12. Final Buying Recommendations
12.1 For Students on a Budget
If you need a graphing calculator for school:
- Best value: Look for a used HP 40gs in good condition (₱५,०००-६,५००) on Facebook Marketplace
- Alternative: Consider a Casio fx-9860GIII (₱७,५०० new) for better support
- Where to buy: Shopee or Lazada with good return policies
- What to check: All buttons work, display is clear, no battery corrosion
12.2 For Collectors
If you’re collecting vintage calculators:
- Target condition: New/sealed or like new with all accessories
- Price range: ₱९,०००-१२,००० for mint condition
- Where to find: Specialty calculator forums, eBay international sellers
- Look for: Original box, manual, and all cables
12.3 For Professionals
If you need a reliable calculator for work:
- Best option: HP 40gs in excellent condition (₱७,०००-८,५००) or HP 50g (₱८,०००-१०,०००)
- Alternative: HP Prime G2 (₱१८,०००-२२,०००) for modern features
- Where to buy: Authorized resellers for warranty options
- Must-have: Fully functional CAS and programming capabilities
Before purchasing, check if your school or board exam allows the HP 40gs. Some institutions have started banning older graphing calculators due to their programmability.