Three letters, three very different promises. EMS, DHL, and SAL are the lines shoppers ask about most, and the choice between them is less about which is best and more about which is best for this specific haul. Here's how to tell them apart without a degree in logistics.
Meet the three lines
EMS (Express Mail Service) is the international express arm of national postal operators — in this case China Post. Your parcel moves through the postal network and is handed to your local post office at the border. It's mid-priced, decently tracked, and the default for most mid-size hauls.
DHL is a private courier running its own planes and trucks end to end. It never touches the postal system, which is why it's fast, expensive, and obsessed with volumetric weight. It's the line for when speed and certainty matter more than money.
SAL (Surface Air Lifted) is the budget traveler. Your parcel rides surface transport domestically and only flies when a carrier has spare space. It's cheap and genuinely slow, and it suits heavy, bulky, low-urgency hauls that would otherwise cost a fortune.
Head-to-head
| Factor | SAL | EMS | DHL |
|---|---|---|---|
| Typical speed | 15–45 days | 7–20 days | 3–7 days |
| Cost (same haul) | Lowest | Middle | Highest |
| Tracking | Basic, gaps | Good | Excellent, granular |
| Volumetric billing | Rarely | Sometimes | Almost always |
| Customs handoff | Postal | Postal | Courier (brokerage) |
| Best for | Heavy, patient hauls | Balanced mid hauls | Urgent, valuable, small |
Speed: the honest numbers
DHL wins on paper every time, but paper speed isn't the whole story. A DHL parcel clears customs through the courier's own brokerage and keeps moving; a postal parcel can sit in a customs queue for days regardless of how fast it flew. In practice, DHL's advantage over EMS is consistency more than raw speed — EMS sometimes matches DHL, but DHL almost never degrades to SAL's pace.
Cost: where the gap actually is
For a 4 kg haul, expect SAL to be the cheapest by a wide margin, EMS to sit comfortably in the middle, and DHL to be two to three times the SAL price — and more once volumetric billing kicks in on a bulky box. The mistake shoppers make is comparing headline rates without noticing that DHL charges by volume, so a fluffy 4 kg box can bill as 8 kg while SAL bills 4 kg flat.
Tracking and reliability
DHL's tracking updates at every scan, which means you always know where the box is. EMS is solid but goes quiet for a day or two at customs. SAL tracking is the weakest link — expect long silences and an in-transit purgatory that tests your patience. If you're the type who refreshes tracking at 2 a.m., factor that into your choice.
Customs handling
Postal lines (EMS and SAL) hand off to your country's post office, which usually clears low-value parcels with no extra brokerage fee. Couriers like DHL often pre-pay duties and then bill you a brokerage or admin fee on top — a fee that can exceed the duty itself on a small haul. For declared low-value hauls, postal lines are friendlier; for high-value items, courier brokerage can be faster and cleaner.
What about e-EMS?
You'll see e-EMS in most agents' menus. It's the same postal network as EMS but sold at a discount for packages that skip some courier-grade handling. For a normal haul it's a fine way to capture EMS reliability at a slightly lower price — just confirm with your agent that tracking is full, since some e-EMS variants offer only basic tracking.
The verdict: choose by priority
- Budget is everything, no deadline → SAL.
- Balanced, mid-size haul, normal patience → EMS.
- Small, valuable, urgent, or fragile → DHL.
- Bulky but light (jackets, plush) → avoid DHL unless speed justifies volumetric pain.
Before you commit to any of the three, model the real numbers — weight, dimensions, and declared value — side by side. A shipping calculator on sheetquik.com makes that comparison in one view, and Oopbuy Spreadsheet keeps your past EMS, DHL, and SAL outcomes so your next choice is based on your own data, not a guess.