Choose ePacket for light e-commerce items under 2 kg, EMS when speed or value matters, Registered Air Mail when you need proof of posting cheaply, and Surface Mail for heavy, non-urgent bulk. The service you pick fixes your speed, weight limit and tracking depth – and cannot be changed later.
The comparison table
| Service | Speed | Max weight | Tracking | Signature | Cost |
|---|---|---|---|---|---|
| EMS (E*) | 3-10 days | ~30 kg | Full, end-to-end | Usually | Highest |
| ePacket / EUB (L*) | 7-20 days | ~2 kg | Full, end-to-end | Rarely | Low |
| Registered Air (R*) | 10-30 days | ~2 kg | Full, signed | Yes | Low-mid |
| Parcel post (C*) | 10-35 days | ~20-30 kg | Full | Sometimes | Mid |
| Economy packet (A*) | 10-25 days | ~2 kg | Often partial | No | Lowest |
| Untracked / economy (U*) | 15-40 days | ~2 kg | Limited or none | No | Lowest |
| Surface (sea) | 30-90 days | Higher | Limited / full | Rarely | Cheapest for bulk |
Each service in detail
EMS (prefix E)
The premium option. Priority handling, end-to-end tracking, signature on delivery and the broadest weight range. It also generates the most scan events, which makes progress easy to follow. In our dataset EMS accounted for 11.4% of all tracking numbers – notable, given it is by far the most expensive option.
ePacket / EUB (prefix L)
Built for cross-border e-commerce. Limited to about 2 kg, with full tracking at a fraction of EMS cost. This is the default choice for most AliExpress, Temu and independent-store orders. It was the largest single family in our data at 36.7% of all tracking numbers.
Registered Air Mail (prefix R)
Similar weight limit to ePacket, slightly slower, but requires a signature. That signature is the reason to choose it: it gives you proof of delivery, which matters in disputes. Registered mail accounted for 17.3% of numbers.
Parcel post (prefix C)
For larger items – roughly 2-30 kg. Slower than EMS, far cheaper for weight. Use it when size and cost matter more than speed.
Economy e-commerce packet (prefix A)
A budget e-commerce channel, 17.1% of the numbers we analysed. Often delivers without a signature, and this family dominated our “delivered but not received” complaints – a direct consequence of that design.
Untracked / limited tracking (prefix U)
The cheapest tier, 7.8% of numbers. Tracking frequently stops at the Chinese border. If you buy this, expect no useful international visibility.
Surface mail
Sea freight. Very cheap for heavy items, with transit measured in months rather than weeks.
What the real-world service mix looks like
Most guides describe services as though they were evenly used. They are not. Across the S10 numbers in 50,037 real enquiries, the distribution was:
| Family | Share |
|---|---|
| L* – tracked small packet / ePacket | 36.7% |
| R* – registered | 17.3% |
| A* – economy e-commerce packet | 17.1% |
| E* – EMS | 11.4% |
| C* – parcel | 8.8% |
| U* – limited tracking | 7.8% |
| V* – insured | 0.2% |
Two conclusions worth drawing. First, budget small packets dominate cross-border volume by a wide margin. Second, the two highest-complaint families in the data – “no update” and “delivered but not received” – are the budget ones. Cheaper shipping buys less visibility and fewer safeguards. That is the trade-off, and it is worth knowing before you choose.
A decision path that works
- Under 2 kg, ordinary value, no urgency → ePacket. Best balance of cost, tracking and speed.
- Under 2 kg, but you need proof of delivery → Registered Air Mail, for the signature.
- Under 2 kg, cheapest possible, tracking unimportant → economy or untracked channel, accepting the risk.
- Urgent, or high value → EMS. The tracking depth alone reduces claim disputes.
- Over 2 kg, not urgent → parcel post.
- Heavy and cost-sensitive, time irrelevant → surface mail.
- Very heavy or oversized → a freight forwarder, not the postal network.
What the price difference actually looks like
Exact rates vary by zone, weight and date, but the relative pattern is stable:
| Service | Relative cost | Relative speed | Scans recorded |
|---|---|---|---|
| EMS (E*) | 1× (baseline, highest) | Fastest | Most |
| Parcel post (C*) | ~0.6× | Moderate | Many |
| Registered air mail (R*) | ~0.4× | Moderate | Many, plus signature |
| ePacket (L*) | ~0.4× | Moderate | Usually complete |
| Economy packet (A*) | ~0.25× | Slower | Partial |
| Untracked (U*) | ~0.2× | Slowest air | Few or none |
What matters is not the multiplier but the shape of the trade-off. The cheapest tier saves a fraction of the cost and costs you most of the visibility – and our complaint data shows exactly where those savings land: in delays you cannot see and deliveries you cannot prove.
Tracking depth is not the same as tracking
“Tracked” is not a binary, and this is the detail most comparison charts leave out:
| Family | Scans in China | Export / handover | Destination scans | Delivery scan |
|---|---|---|---|---|
| EMS (E*) | Yes | Yes | Yes | Yes |
| Registered (R*) | Yes | Yes | Usually | Yes, signed |
| ePacket (L*) | Yes | Yes | Usually | Usually |
| Parcel (C*) | Yes | Yes | Yes | Usually |
| Economy (A*) | Yes | Sometimes | Sometimes | Often none |
| Untracked (U*) | Yes | Rarely | Rarely | No |
Two parcels can both be described as “tracked” and behave completely differently. If you need evidence, you are buying the signature in the Registered and EMS rows. If you only need reassurance, ePacket is usually enough.
How the price is actually calculated
- Weight tiers. Charged per unit – often 0.5 kg for parcels, 100 g for small packets.
- Volumetric weight. For bulky-light boxes the carrier compares actual weight with length × width × height ÷ 6,000 (or 8,000). The greater value is charged, so a large empty-ish box can cost more than its scale weight implies.
- Destination zone. Countries are grouped into pricing zones; distant zones cost more.
- Add-ons. Registration, insurance and customs documentation fees.
- Duty. Separate from postage and usually paid by the recipient unless the sender ships DDP.
One more consideration: who bears the risk. Postage level and risk sit on different axes. A cheap untracked parcel and an expensive EMS parcel can both be delayed by customs – but only one gives you the evidence to win a dispute. If the item is worth more than roughly ten times the postage difference, the premium tier is usually the cheaper decision in expectation.
Three myths about service choice
- “Paying more avoids customs.” It does not. Duty liability is set by value, contents and destination rules.
- “EMS is always the best choice.” For a 300 g phone case it is simply an expensive way to arrive a few days earlier.
- “Cheap shipping is the same, just slower.” Not quite. Cheaper services also mean fewer scans, no signature, and weaker evidence if something goes wrong – which is precisely what our complaint data shows.
FAQ
Is ePacket faster than EMS?
No. EMS is generally 3-10 days; ePacket is 7-20. ePacket is cheaper, not faster.
Which is better, EMS or registered air mail?
EMS for speed and weight range; registered air mail for a cheaper signed service on small items.
What is the difference between ePacket and EUB?
They are closely related e-commerce channels under the tracked letter-post family. Both use L* prefixes and offer similar speed and tracking.
Can I send more than 2 kg by ePacket?
No. ePacket and registered air mail are limited to about 2 kg. Use parcel post or EMS for heavier items.
Which service has the best tracking?
EMS, then ePacket and registered air mail. Economy (A*) and untracked (U*) channels may not be scanned outside China at all.
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