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How to Order Custom OEM Phone Cases from China: A Step-by-Step Guide

May 2025 8 min read OEM Guide
Custom OEM phone case packaging China manufacturer

Ordering custom OEM phone cases from China for the first time can feel overwhelming. What files do you need? How do you protect your design? What should a sample actually cost? What happens if the bulk order is wrong?

This guide answers all of those questions, step by step — written for buyers placing their first OEM order or importers looking to tighten up their process.

What "OEM Phone Case" Actually Means

OEM (Original Equipment Manufacturer) means the manufacturer produces a product to your specification — using your logo, your colors, or your design, on their existing base product. ODM (Original Design Manufacturer) goes further: the manufacturer creates an entirely new design based on your brief.

For most small and mid-size phone case brands, OEM (logo + color customization on existing case styles) is the right starting point. ODM (new mold development) requires higher quantities and longer lead times, but is available when you're ready to scale.

Step 1: Define Your Brief Before Contacting Anyone

The more specific your brief, the better your quote and the fewer revision rounds you'll need. Before reaching out to a supplier, know these five things:

  1. Phone models: Which iPhone or Samsung models? Be specific (e.g., "iPhone 15 Pro Max" not just "iPhone").
  2. Case style: Clear TPU? Silicone? Leather wallet? MagSafe magnetic? Each has a different base cost.
  3. Customization type: Logo only, custom color, full print, or packaging only?
  4. Quantity: Even a rough estimate helps the supplier give you accurate pricing tiers.
  5. Market: Where is the product selling? This affects compliance documentation you may need.
Tip: You don't need finished design files at this stage. A rough sketch, a reference image, and your logo in any format is enough to start the conversation and get an initial quote.

Step 2: Get a Free Digital Mockup

Timeline: Day 1–2

Send your brief to the supplier. A good OEM partner will create a free digital mockup showing your logo or design on the case within 24–48 hours. Review the mockup carefully — check logo placement, size, color accuracy, and any packaging elements.

Request revisions at this stage. Mockup revisions are free and fast. Revisions after the sample is made cost time and money.

Step 3: Order and Approve a Physical Sample

Timeline: Day 3–8

After approving the digital mockup, request a physical sample. Samples typically ship via DHL or FedEx express and arrive within 3–5 business days of production completion.

When your sample arrives, check:

  • Logo placement and print quality (no blurring, correct color)
  • Case fit on the actual device — buttons accessible, ports clear, camera cutout precise
  • Material feel — silicone softness, leather texture, TPU flexibility
  • Packaging print quality if you ordered custom boxes
  • MagSafe magnet alignment if applicable (use a MagSafe charger to test)

If anything is off, send photos and request a revised sample before proceeding. A legitimate OEM supplier will not push you to bulk before sample approval.

Step 4: Confirm Bulk Order Details

Once you approve the sample, confirm in writing:

  • Exact quantity per model/color/SKU
  • Packaging requirements (retail box, poly bag, hang tag, barcode)
  • Shipping method (air express, sea freight, DDP, FOB)
  • Delivery address (warehouse, Amazon FBA address, freight forwarder)
  • Payment terms (standard: 30% deposit, 70% before shipping)

Step 5: Production and QC

Timeline: 12–18 business days

Production runs after deposit is confirmed. A professional supplier will send you mid-production photos and a final pre-shipment QC report. If issues are found during QC, they're corrected before shipping — not discovered at your warehouse.

Step 6: Shipping and Customs

For most buyers ordering 100–2,000 pcs, air express (DHL/FedEx) is the right choice: 5–7 days door-to-door, simple customs clearance, easy tracking. For larger orders (2,000+ pcs), sea freight cuts cost significantly but adds 25–35 days transit time.

DDP (Delivered Duty Paid) is the safest option for first-time importers — the supplier handles all customs paperwork and import duties, and delivers to your address. You simply receive the package. Ask your supplier if they offer DDP shipping to your country.

Ready to Start Your OEM Order?

Send us your brief — logo, phone models, quantity. We'll reply within 24 hours with a free digital mockup and factory price. No obligation.

Start Custom Order →

Common Mistakes First-Time OEM Buyers Make

  • Skipping the sample: Always get a physical sample. Photos lie. The sample is your quality benchmark for the bulk order.
  • Not specifying packaging in the brief: Packaging is where OEM identity lives. Define it early, not after production starts.
  • Ordering too many models at once: Start with 2–3 models to test sell-through. Expand after you know what moves.
  • Ignoring compliance requirements: If you're selling on Amazon or in the EU, check whether you need SGS/CE/RoHS documentation. Ask your supplier upfront.
  • Paying 100% upfront: Never pay 100% before production. Standard terms are 30% deposit, 70% on completion. This protects both parties.