We are a stylus source factory in Shenzhen. This review puts our two main models — K5 and P13 — on the same table as the Apple Pencil and opens up the specs, the use cases and the customization options: factory-direct, no brand premium, private label ready. What you buy is the product itself.
01The short answer
In one line: factory capability, with everything everyday writing actually needs
- K5 — Type-C plus magnetic wireless charging. Attach it to a wireless-charging iPad and it starts topping up: about 6–8 hours of continuous writing, about 180 days of standby.
- P13 — one-piece aluminum alloy body, about 13–15 hours of runtime, three-colour battery light, full charge over Type-C in about 30 minutes.
- Both — tilt shading, full-screen palm rejection, pixel-level precision, magnetic attachment, Bluetooth pairing and iPad battery-widget sync. Laser-engraved logos, custom retail boxes and ODM feature work all supported.
02Our two main models
K5 and P13 serve two different needs: one removes the charging chore, the other solves runtime and build quality.
K5: one-piece plastic body, hidden charging port, Type-C and magnetic wireless charging, about 13 g.
P13: one-piece aluminum alloy body, Bluetooth battery display, physical power button, about 14 g.
03Spec comparison
Our English comparison graphic: Apple Pencil (USB-C), XDGY K5 and XDGY P13 side by side.
04Six things we do well
●① Dual charging: magnetic + Type-C (K5)
Attach it to the side of a wireless-charging iPad and it tops up, reaching full in about 40 minutes; iPads without wireless charging use the hidden Type-C port, so one cable still does the job. Slide the pen cap once to power on, with a 300-second auto-sleep.
●② 13–15 hours of runtime, with the level visible (P13)
The 130 mAh battery delivers about 13–15 hours of continuous writing and about 180 days of standby, drawing under 10 µA at rest. A three-colour light (green / blue / red) plus the iPad battery widget shows live charge — a full day of classes or meetings without thinking about the charger.
●③ Tilt shading and full-screen palm rejection
Rest your whole hand on the glass and the page stays clean; tilt the barrel to thicken the line for shading and brush transitions. The factory tilt test rotates the pen to 65° ± 10° against the screen: the line must visibly thicken and stay unbroken.
●④ One-piece aluminum body and replaceable nibs, lower lifetime cost
P13 uses a one-piece aluminum alloy barrel and K5 a one-piece painted body. Both take replaceable POM threaded nibs — when a tip wears down you swap the nib, not the pen, which lowers the lifetime cost of a bulk order.
●⑤ Source-factory capacity and quality control
A 3,000 m² facility covering production workshops, R&D and storage, with about 70 staff including 5 R&D engineers and 7 quality control specialists. Monthly capacity is about 300,000 units: roughly 120,000 universal styluses, 100,000 iPad-specific styluses, 50,000 active electromagnetic styluses and 30,000 passive styluses and accessories.
Incoming material inspection → soldering → final assembly → quality inspection → packing → cartoning → shipment. Above: soldering and assembly stations with ESD gowns and anti-static benches.
●⑥ Inspection standards written into the specification sheets
- Sampling and acceptance: MIL-STD-105E, general inspection level II, single sampling — critical defects Cr=0, major Maj=1, minor Min=2.5.
- Functional tests: writing test (three horizontal and three vertical lines at ±20°, no latency or dropouts), tilt test (eight lines drawn while rotating at 65° ± 10°, line must thicken and stay continuous), dimensional check, charging test.
- Reliability tests: bare-unit drop from 1.2 m, twice in each of the X/Y/Z directions; vibration (60 min bare, 120 min boxed); simulated transport at 200–220 Hz for 2 hours.
- Documents available with your order: MSDS, UN38.3, sea-transport identification and air-transport reports; ISO 9001:2015 and BSCI social audit (passed 2023) at system level; CE, FCC, RoHS and REACH at product level.
05 Private label: what we can change
Standard shipment: pen + Type-C cable + two spare nibs + user manual. The retail box ships as neutral packaging and can be rebuilt around your brand.
| Customizable item |
Details |
| Brand marking |
Laser-engraved logo / serial number on the barrel (in-house laser engraver); position and depth confirmed against artwork |
| Packaging and manual |
Box structure, print design, inserts, barcodes and labels; multi-language manual layout and printing; neutral or simple packaging also available |
| Accessory pack and colors |
Spare nib quantity, cable, clip, cap and other combinations; colors matched to Pantone or physical samples |
| Function and structure (ODM) |
Button definitions, shortcut logic, power-on method, nib material |
Samples, a model recommendation, or an engineer's read on your custom spec
Samples, a model recommendation, or an engineer's read on your custom spec
Shenzhen Xindianganying Technology Co., Ltd.
Tujin Technology Park, No. 18 Fengqi Road, Fucheng'ao Community, Pinghu Subdistrict, Longgang District, Shenzhen, Guangdong, China
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