Can you provide a sample with my preferred screen size and color?

Precision in the initial request avoids misinterpretation. “Screen size” can mean active viewing diagonal (usable writing area), outer LCD glass dimensions, or the complete bezel-to-bezel footprint. If you are replacing a product or fitting a cover, supply the critical dimension in millimeters (mm) and specify whether it is the active display diagonal, visible area, or outer panel size. Include a little technical drawing or a simple image with measurements. For color, be explicit: does “black” mean matte black, gloss black, or satin? Does “blue” need to match a Pantone, RAL, or vendor shade? If color matching is important for retail presentation or brand consistency, attach a color reference and accept there may be an extra charge for matched tooling or painting on small runs.

Spell out tolerances and how you will measure them. For example, list the acceptable deviation for screen diagonal (±0.5 mm, or another threshold you and the supplier agree), and whether you accept slight variations between sample and production units. Confirm whether the supplier will use the same injection-molding tool and bezel finishing process for the sample as they would for mass production (this affects color and surface texture). If you need a physically identical bezel in material, finish and color, explicitly request an 'production-equivalent' sample rather than a quick prototype made from different materials.

Not all samples are the same. A 'photo sample' or 'pre-production sample' may be sufficient to confirm cosmetic color and general size, but it may be made with different molds or non-final materials. A 'production-equivalent sample' (sometimes called a 'PP sample' or 'golden sample') is intended to reflect the final product and should use the final tooling, components and assembly processes. Decide which type you need before you request and budget accordingly.

Consider three typical options depending on your objective: conceptual proof, functional confirmation, or production equivalence. Use a conceptual sample to validate size and color for a design decision; use a functional sample to confirm battery operation, writing responsiveness and button function; and use a production-equivalent sample to confirm cosmetic finish, assembly fit, and packaging details. Be explicit in the inquiry about which level of fidelity you expect and what will make the sample acceptable for approving a manufacturing run.

Before a sample is shipped, confirm the supplier’s answers to a defined set of questions that reflect both technical and logistical concerns. Key technical questions include: what is the exact LCD panel part number and its active area; what plastic resin and finish are used for the bezel; what battery type and capacity are fitted; and whether the unit includes any EMI shielding or antenna elements that could affect regulatory testing. For promotional or retail products, also confirm printing or pad-printing locations and whether sample printing will be representative of production.

On logistics, confirm who pays for sample cost and shipping, the courier used, whether the battery is installed and how it is declared for transport (primary/secondary lithium battery rules can change shipping procedures), and whether the supplier will provide documentation such as a commercial invoice, packing list and any material data sheets. If you plan to tax or resell the sample, confirm if the supplier marks the item as 'sample' and whether customs paperwork reflects its commercial value or 'no commercial value' — remember that customs treatment depends on the destination country and you should verify with your customs broker or importer-of-record.

When the sample arrives, perform an immediate visual and functional inspection using a defined checklist. First, verify external dimensions against the measurements you supplied, and check bezel color in consistent lighting (daylight-balanced lamp if possible). Look for visible defects: sink marks, flashing, paint inconsistencies, seam lines or tool marks, and any foreign particles beneath the protective film. If branded or promotional printing is required, check alignment and color fidelity.

Next perform functional checks: battery seating and replacement procedure (if user-serviceable), erase function and button life feel, stylus fit and retention, screen pressure response across the writing area, and any included connectivity features. Verify that the LCD clears reliably and that no ghosting or dead zones appear. Record the sample serial number or sample identifier if supplied and take timestamped photographs documenting any non-conformities. If you rely on retailers or institutional buyers, consider asking them to sign acceptance tests to confirm the sample met their tactile and cosmetic expectations.

Some performance tests you can perform in-house; others require a qualified laboratory. In-house tests include functional life checks (repeat erase cycles to detect early failures), manual abrasion tests on the bezel finish, and simple drop checks from your agreed packaging height. These help identify obvious failures but are not substitutes for regulatory testing. For reliability concerns, ask the supplier for their factory test reports and test protocols; request specific sample test records if available.

When the product will be sold in regulated markets, or if you cannot reliably reproduce a test in your facilities, engage an accredited test laboratory. Electrical safety (where applicable), electromagnetic compatibility (EMC), and chemical content (e.g., restricted substance screening) require accredited labs. For markets such as the U.S. or EU, you will need to verify applicable standards and possibly obtain test reports related to the intended use and configuration. Use the provided regulatory resources to confirm which authorities to consult: the U.S. Consumer Product Safety Commission (CPSC) and the Federal Communications Commission (FCC) for the U.S., and the European Commission’s CE marking guidance for EU obligations. Always instruct the laboratory to test the exact configuration you intend to import (battery type, enclosure material, and any wireless components).

A frequent cause of sample delays is how batteries are handled. For samples with installed button-cell or coin batteries, confirm whether the battery is classified as lithium primary or alkaline and how the supplier will declare it. Different carriers and countries have distinct rules for shipping batteries by air and ground. If the supplier will ship with the battery installed, ask for the UN number and the shipper’s declaration of dangerous goods if applicable, and confirm whether the carrier accepts the shipment. If you prefer, request the sample without batteries to simplify shipping, but remember that some functional tests (e.g., erase operation) will then be impossible until you supply batteries later.

Customs clearance can vary by destination. If the supplier marks samples as 'free of charge for evaluation', customs in your country may still assess duties or require commercial documentation. Provide your supplier with the importer-of-record details and any required certificates of origin or commercial invoices. If the sample is part of a promotional order, check whether local regulations require labelling or safety instructions for use in institutional settings such as schools. Finally, consider insured shipment for higher-value samples and require itemized packing lists to speed customs processing.

Sample charges vary by supplier and sample type. Expect lower or waived costs for simple photo samples and higher charges for production-equivalent samples because of tooling use, paint matching or small-batch assembly. When negotiating, be explicit about deliverables: whether the fee covers one sample or multiple units; whether it includes shipping; and whether any sample cost will be credited against a later production order. Suppliers are often willing to offset sample cost against a confirmed purchase, but always require this agreement in writing.

Lead time for samples depends on many variables (tooling status, painting and curing time, component availability). For example, if you request a color match that requires custom painting or a pre-production run using final tooling, lead times will be longer than a quick mock-up. Ask for a realistic timeline and include contingency for rework if the first sample does not meet your approval. Communicate a deadline for sample delivery if you have retail or promotional timelines, and discuss expedited shipping options early to avoid surprises.

Treat the approved sample as part of the contract for production. Once you accept a production-equivalent sample, document the approval with signed sample approval sheets (sometimes called 'PPAP' or 'golden sample sign-off' in other industries), include photographs and measurements that define acceptance, and record any remaining open items. These documents become your benchmark for production inspection. Clearly state whether color, material, or features are 'critical' and require 100% compliance or whether some tolerance is acceptable.

Also confirm packaging and labeling decisions using the approved sample. Consider a production pre-shipment inspection (PSI) that checks a measurable sample of finished units against the approved sample. Define sampling methods, acceptance criteria and responsibility for non-conforming items. Keep your product specifications, tooling numbers, and color references on file and reference them in your purchase orders to reduce confusion in subsequent runs.

To help you choose, here is a compact qualitative comparison that summarizes sample options and their typical uses. Do not treat this as a full specification — use it only to frame discussions with suppliers because each factory and product line differs. The table below lists common sample categories and guidance on when to use them.

Use this comparison alongside your specific project schedule and testing needs. If you will sell into regulated markets, prioritize production-equivalent samples and accredited testing before you commit to a large purchase order.

Below is a concise inquiry checklist you can copy into a first message to suppliers. Use it to elicit specific answers and to set expectations for the sample. Attach photos, dimensional drawings and a color reference when you send the inquiry. Keep replies in writing and capture agreed changes in follow-up emails.

Use this checklist as a living document. Add project-specific requirements such as testing standards, packaging artwork, or logistics constraints. If multiple stakeholders (marketing, compliance, warehouse) need to sign off, include them early so the supplier understands the approval cadence.

Approval of a sample does not substitute for regulatory compliance. If you plan to market the product in a country with electrical safety or EMC requirements, consult an accredited lab and the correct regulator early. For the U.S., reference the U.S. Consumer Product Safety Commission (CPSC) and the Federal Communications Commission (FCC) where applicable; for the EU, see the European Commission’s CE marking guidance. Do not assume a supplier’s statement of conformity is sufficient—obtain documentary evidence and consider having the sample or a batch tested by an independent laboratory if compliance is critical to your market.

Finally, document every step. Keep records of sample approvals, photos, supplier acknowledgments and any agreed tolerances. If a supplier makes a change during production, ask for a new sample or a pre-shipment sample that demonstrates the change. These processes reduce disputes and ensure your finished shipment matches the product that passed your approval.

If you would like a structured inquiry template customized for your project (screen sizes, color references, and testing priorities) we can provide a ready-to-send version tailored to your market and product configuration. Use the contact link below to request it and include your target screen dimensions and desired bezel color standard.

Clear, early communication shortens sample cycles and reduces rework. Preparing a complete specification and requesting a production-equivalent sample when appropriate will give you stronger leverage during negotiations and lead to fewer surprises at pre-shipment inspection.