How should B2B buyers approve foldable 3-in-1 wireless chargers? Confirm the folded and open dimensions, check the hinge with the intended devices, and review a fully packed sample. An attractive open-position photograph does not establish packed size, hinge durability or compatibility.
Shinestone is an OEM/ODM wireless charger manufacturer and supplier. For a travel-oriented or compact-desktop sourcing project, use a model-specific brief that connects the product, accessories, packaging and acceptance checks. The two published models below provide a starting point—not a claim that either has passed the proposed tests.
1. Compare folded size and working size separately
A folded-size specification answers a storage question. An open-size specification helps establish the working envelope on a desk. Neither is a retail-box dimension, and the charger’s net weight is not the packed shipment weight.
| Published specification | SST-WXC2639 | SST-WXC2636 |
|---|---|---|
| Listed folded dimensions | 75 × 75 × 34 mm | 99.5 × 66.5 × 32 mm |
| Listed unfolded dimensions | 75 × 95 × 125 mm | 101 × 66.5 × 107 mm |
| Net product weight | 130 g | 130 g |
| Format | Square base, folding phone panel, watch and TWS positions, LED base light | Folding upright phone support, watch and TWS positions, LED base light |
| Listed material | Plastic | Plastic |
These figures come from the published product specifications for SST-WXC2639 and SST-WXC2636, checked on November 3, 2026. Confirm the dimension-axis labels, measurement position and tolerances on the final drawing. Do not assume every supplier uses the same length/width/height order.
Choose according to the actual use case: the buyer may prioritize folded thickness, the footprint in a pouch, or open-position height. Measure the approved sample in the agreed positions rather than declaring one design universally “more portable.”
2. Define hinge acceptance before asking for a durability claim
Ask for the intended adjustment range and folding sequence. Then agree on a repeatable sample check using the actual phone and case, watch and earphone case planned for the assortment. Record the starting condition and inspect the same points afterwards.
- Position holding: at the agreed working angles, check whether the support remains in position with the intended device fitted.
- Movement and clearance: check opening, closing, watch access, base clearance and cable routing within the intended adjustment range. Do not force the mechanism beyond its stops.
- Condition after cycling: inspect for looseness, cracks, rubbing, inconsistent movement and changes in position holding.
- Charging after adjustment: verify charging recognition in the approved working positions with the specified devices and power setup.
Agree the cycle count, load, angles, test method and pass/fail criteria before testing. A short demonstration video is not evidence of a particular lifetime. No hinge-cycle rating or measured durability result is provided here for either model; request a model- and revision-specific report if that claim matters to your sales channel.
3. Approve the complete setup, not the hinge alone
Check the folded unit inside the intended storage space, then open it and fit all target devices. Confirm that the USB-C connection remains accessible, the cable does not obstruct adjustment, and the phone can be positioned as intended without preventing watch or earphone placement.
Do not assume that a storage position is also an approved charging position. Likewise, “3-in-1” describes a format, not universal phone/watch compatibility or simultaneous maximum output. Keep electrical approval separate from mechanical fit; the adapter and cable power-budget guide explains the configuration information to request.
4. Review a packed sample before finalizing the quotation
Ask for a sample packed in the proposed sale configuration, with the agreed cable, any included adapter, instructions and protective insert. Check that accessories cannot press against the charging panel, scratch its surface or interfere with the folded mechanism. Confirm the actual included items rather than inferring them from a product image.
Keep three measurements distinct in the quotation: product dimensions, external retail-box dimensions, and external master-carton dimensions. Record packed weights and carton quantity separately. A low folded height alone does not establish lower freight cost; compare the final packed configurations under the same shipping assumptions.
If transit testing is needed, choose the procedure for the actual distribution route and packaging configuration with the responsible testing provider. ISTA’s guidance on selecting test procedures emphasizes understanding how a package will be shipped, handled and stored. This is not a claim of ISTA certification or a completed transit test for these chargers.
For private-label artwork, approve the buyer’s brand, exact product model, included-accessory list and instructions together with the packed sample. Shinestone should be identified accurately as the supplier or manufacturer where appropriate—not automatically substituted for the buyer’s consumer brand.
5. Send a compact, comparable OEM/ODM brief
To request useful options from Shinestone, send:
- The shortlisted model and preferred folded/open size limits.
- Exact target devices and cases, intended working positions and storage use.
- The hinge-check method and acceptance evidence required.
- Adapter and cable inclusion, plug version and destination market.
- Quantity, buyer-logo artwork, packaging concept and distribution route.
Keep the approved sample revision, drawing and packing list linked to the order. Use the wireless charger sample-testing checklist for broader checks and the compliance-document guide for model- and market-specific documentation.
Buyer questions
Does a smaller folded charger always need a smaller retail box?
No. Accessories, protective inserts and the final presentation also determine the box. Compare complete packed samples, not product dimensions alone.
Can a product video prove hinge durability?
A video can show the folding sequence and visible operation. A quantified durability claim requires an identified method, load, cycle count and result for the relevant model revision.
Should every foldable charger be described as travel-ready?
Only describe the storage, accessory and setup benefits you have verified. A folding mechanism alone does not establish packed performance, universal compatibility or travel-specific approvals.
Request foldable wireless charger options from Shinestone
Request an OEM/ODM quotation or packed sample for SST-WXC2639, SST-WXC2636 or a defined foldable 3-in-1 requirement. Shinestone can review available supply and customization options; branding, samples, documentation, MOQ, pricing and delivery terms require confirmation for the selected project.
Explore the wireless charger range and view Shinestone’s real factory video and process images when evaluating the company behind your supply inquiry.
This is a proposed procurement and sample-approval guide, not a report of completed hinge, transit or device-compatibility tests.
