Chinese trains have letter prefixes — G, D, C, Z, T, K — that tell you everything about speed, comfort, and price. Each type has multiple seat or sleeper classes. The combinations are confusing if you've never been to China.
This guide breaks down every train type and every class with real seat widths, prices, and clear recommendations for tourists.
Train Types at a Glance
| Type | Name | Speed | Best For | Comfort Level |
|---|---|---|---|---|
| G | 高铁 Gaotie | 300–350 km/h | Intercity travel — default choice | ★★★★★ |
| D | 动车 Dongche | 200–250 km/h | Overnight routes, budget alternative | ★★★★ |
| C | 城际 Chengji | 160–350 km/h | Short hops between nearby cities | ★★★★ |
| Z | 直达 Zhida | 160 km/h | Overnight long-distance (no stops) | ★★★ |
| T | 特快 Tekuai | 140 km/h | Budget long-distance | ★★ |
| K | 快速 Kuaisu | 120 km/h | Cheapest long-distance | ★ |
Your rule: Always search for G-trains first. They're the fastest, newest, and most comfortable. Use D-trains for overnight sleeper routes. Only use Z/T/K if G/D don't cover your route or you're on a very tight budget.
G-Trains (Gaotie 高铁) — The Bullet Trains
Speed: 300–350 km/h | Track: Dedicated high-speed lines | On-time: >95%
G-trains are China's world-class bullet trains. They run on dedicated tracks, use the newest Fuxing (复兴) trainsets, and connect every major city. If you're traveling between any two major Chinese cities, a G-train is almost certainly your best option.
Example routes: Beijing→Shanghai (4.5 h), Shanghai→Hangzhou (1 h), Beijing→Xi'an (4.5 h)
Seat classes available: Second Class, First Class, Business Class
D-Trains (Dongche 动车) — Slower Bullet Trains
Speed: 200–250 km/h | Track: Mixed (some high-speed, some conventional)
D-trains are slightly older and slower than G-trains. They share tracks with conventional trains on some routes, which is why they're slower. However, D-trains have one advantage G-trains lack: sleeper berths on overnight routes.
Example routes: Beijing→Shanghai (overnight D-trains with sleepers), Shanghai→Shenzhen
Seat/sleeper classes: Second Class, First Class, Second Class Sleeper, First Class Sleeper
When to choose D over G: Only when you want an overnight sleeper (saves a hotel night) or when G-trains on your route are sold out.
C-Trains (Chengji 城际) — Intercity
Speed: 160–350 km/h | Track: Short intercity routes
C-trains connect nearby cities — Beijing↔Tianjin (30 min), Guangzhou↔Shenzhen, Chengdu↔Chongqing. Functionally similar to G-trains but on shorter routes.
When to use: Short hops where G-trains also run — take whichever has better timing.
Z-Trains (Zhida 直达) — Direct Overnight
Speed: 160 km/h | Track: Conventional | Stops: Few or none
Z-trains are "direct" overnight trains between major cities. They skip most intermediate stations, making them faster than T and K trains. No seat classes — sleeper berths only (soft and hard).
Example routes: Beijing→Shanghai (overnight, ~10 h), Beijing→Xi'an (overnight)
When to use: You want to save on a hotel night and enjoy a "classic Chinese train" experience. Not as fast as daytime G-trains, but the adventure factor is high.
T-Trains (Tekuai 特快) — Express
Speed: 140 km/h | Track: Conventional | Stops: Moderate
T-trains are express conventional trains. Slower than Z-trains with more stops. Have both seats and sleepers.
When to use: Only if no G/D/Z train serves your route.
K-Trains (Kuaisu 快速) — Fast Conventional
Speed: 120 km/h | Track: Conventional | Stops: Many
K-trains are the slowest and cheapest option. They stop at every station along the route. A journey that takes 4 hours by G-train might take 12–20 hours by K-train.
When to use: Budget travelers who want the cheapest possible fare and don't mind the extra time.
Seat Classes on High-Speed Trains (G/D/C)
Second Class (二等座) — Default Choice
| Layout | 3+2 seats per row (A-B-C | D-F) |
| Seat width | ~43 cm (17") |
| Seat pitch | ~98 cm (38.5") |
| Recline | Limited (~25°) |
| Power outlets | Under-seat shared |
| WiFi | Yes (Fuxing trains) |
| Compared to | Airplane economy class |
Verdict: Perfectly fine for trips under 4 hours. Comparable to economy class on a plane. The middle seat (B) is tight — request A (window) or D (aisle) when booking.
Price: Base fare. Beijing→Shanghai ~¥498.
First Class (一等座) — Best Value Upgrade
| Layout | 2+2 seats per row (A-C | D-F) |
| Seat width | ~48 cm (19") |
| Seat pitch | ~116 cm (45.5") |
| Recline | Deeper (~35°) with footrest |
| Power outlets | Per-seat |
| WiFi | Yes |
| Compared to | Airplane premium economy |
Verdict: The sweet spot. Noticeably more space and quieter cabin. Worth the upgrade on routes over 3 hours. No middle seat — every seat is window or aisle.
Price: ~1.6× Second Class. Beijing→Shanghai ~¥833.
Business Class (商务座) — Luxury
| Layout | 1+2 or 1+1 per row |
| Seat width | ~56 cm (22") |
| Seat pitch | ~200 cm (79") |
| Recline | Lie-flat bed |
| Extras | Blanket, slippers, snacks, welcome drink |
| WiFi | Yes |
| Compared to | Airplane business class |
Verdict: Luxurious. Lie-flat seats, VIP lounge access at major stations, complimentary snacks and drinks. Worth it on the longest routes (4+ hours) if you want to arrive rested. Overkill for short trips.
Price: ~3× Second Class. Beijing→Shanghai ~¥1,673.
Seat Class Quick Comparison
| Feature | Second | First | Business |
|---|---|---|---|
| Seats per row | 5 (3+2) | 4 (2+2) | 2–3 (1+2) |
| Width | 43 cm | 48 cm | 56 cm |
| Legroom | 98 cm | 116 cm | 200 cm |
| Recline | Limited | Deep + footrest | Lie-flat |
| Power | Shared | Per-seat | Per-seat |
| Middle seat? | Yes (B) | No | No |
| Price ratio | 1× | 1.6× | 3× |
| Recommended for | Under 3 hours | 3+ hours | 4+ hours / overnight |
Sleeper Classes on Overnight Trains (D/Z/T/K)
Overnight trains offer sleeper berths instead of seats. You get a bed for the night — saving on hotel costs.
Hard Sleeper (硬卧) — Budget Overnight
| Layout | Open bays of 6 berths (3 stacked on each side) |
| Berth size | ~60 cm wide × 180 cm long |
| Mattress | Thin foam pad |
| Privacy | None — no door, curtain only |
| Luggage | Under bottom bunk, overhead rack |
| Air conditioning | Yes |
| Power outlets | Shared at corridor end |
The 3 levels:
- Upper (上铺): Cheapest, most private, but claustrophobic — can't sit up straight
- Middle (中铺): Middle ground — can't sit up either
- Lower (下铺): Most expensive, can sit up, everyone sits on your bed during the day
Verdict: An authentic Chinese travel experience. Fine for one night if you're budget-conscious. Bring earplugs and an eye mask — it's bright and noisy.
Price: Beijing→Shanghai ~¥300–350.
Soft Sleeper (软卧) — Comfortable Overnight
| Layout | Enclosed compartments of 4 berths (2 stacked, 2 per side) |
| Berth size | ~70 cm wide × 190 cm long |
| Mattress | Thicker, more comfortable |
| Privacy | Door that locks — much more private |
| Luggage | Under bottom bunk, overhead |
| Air conditioning | Yes |
| Power outlets | In compartment |
Verdict: The recommended sleeper option. Enclosed compartments with a locking door, wider beds, thicker mattresses. A significant upgrade from hard sleeper for ~¥100–150 more. Best for couples or families (book the whole 4-berth compartment).
Price: Beijing→Shanghai ~¥500–600.
Advanced Soft Sleeper (高级软卧) — Premium Overnight
| Layout | Private 2-berth compartments |
| Berth size | Wider, more mattress |
| Privacy | Private room with door |
| Extras | Sofa, table, sometimes private toilet |
| Availability | Limited routes only |
Verdict: Rarely available. Essentially a private hotel room on wheels. Book it if you see it — great for couples.
Price: ~2× soft sleeper.
Sleeper Comparison
| Hard Sleeper | Soft Sleeper | Advanced Soft | |
|---|---|---|---|
| Berths per compartment | 6 (open bay) | 4 (enclosed room) | 2 (private room) |
| Width | ~60 cm | ~70 cm | ~80 cm |
| Privacy | Curtain only | Door with lock | Private room |
| Comfort | Basic | Good | Excellent |
| Price ratio | 1× | ~1.5× | ~2.5× |
| Who's it for | Budget travelers | Most tourists | Couples / families |
Hard Seat (硬座) — Avoid If Possible
| Layout | 3+2 benches, facing each other |
| Comfort | Low — thin padding, no recline |
| Duration limit | Avoid for trips over 4 hours |
| Crowding | Overcrowded, people standing in aisles |
| Who takes it | Local workers, students, ultra-budget travelers |
Our advice: Avoid hard seat on any trip over 2–3 hours. It's crowded, uncomfortable, and standing passengers fill the aisles. Pay the small extra for at least a sleeper berth on overnight trains.
Which Train + Class Combo to Book
By Trip Length
| Trip Duration | Train Type | Class | Why |
|---|---|---|---|
| Under 2 hours | G-train | Second Class | Short ride, no comfort upgrade needed |
| 2–4 hours | G-train | First Class | Worth the upgrade for extra space |
| 4–6 hours | G-train | First Class or Business | First Class fine; Business if you want to nap |
| 6–10 hours (daytime) | G-train | Business Class | Long ride — lie-flat seat makes a difference |
| Overnight | D or Z train | Soft Sleeper | Save a hotel night, private compartment |
By Priority
| Priority | Best Combo |
|---|---|
| "Cheapest" | K-train hard seat (short) or hard sleeper (overnight) |
| "Best value" | G-train Second Class (under 3h) or First Class (over 3h) |
| "Most comfortable" | G-train Business Class |
| "Save hotel cost" | D/Z train Soft Sleeper |
| "Adventure / experience" | Z-train Hard Sleeper (one night only) |
Real Price Examples: Same Route, Different Combos
Beijing → Shanghai (1,318 km)
| Train | Type | Duration | Class | Price |
|---|---|---|---|---|
| G1 | G-train | 4h 28m | Second Class | ¥498 |
| G1 | G-train | 4h 28m | First Class | ¥833 |
| G1 | G-train | 4h 28m | Business Class | ¥1,673 |
| D710 | D-train | 11h 40m (overnight) | Second Class Sleeper | ~¥550 |
| D710 | D-train | 11h 40m (overnight) | First Class Sleeper | ~¥950 |
| Z1 | Z-train | ~14h (overnight) | Hard Sleeper | ~¥320 |
| Z1 | Z-train | ~14h (overnight) | Soft Sleeper | ~¥500 |
| 1461 | K-train | ~20h | Hard Seat | ~¥156 |
Shanghai → Hangzhou (175 km)
| Train | Type | Duration | Class | Price |
|---|---|---|---|---|
| G7301 | G-train | ~1h | Second Class | ~¥73 |
| G7301 | G-train | ~1h | First Class | ~¥117 |
At this distance, Second Class is perfectly fine — the ride is only 1 hour.
FAQ
What's the difference between G-trains and D-trains?
G-trains are faster (300–350 km/h) and run on dedicated high-speed tracks. D-trains are slower (200–250 km/h) and share some conventional tracks. D-trains offer sleeper berths on overnight routes — G-trains don't.
Is First Class worth it on Chinese trains?
Yes, on rides over 3 hours. You get 20% more width, 18% more legroom, no middle seat, and a quieter cabin. The ~60% price increase is worth it for the comfort gain.
What's the difference between hard sleeper and soft sleeper?
Hard sleepers are open bays of 6 bunks with only curtains. Soft sleepers are enclosed 4-bed compartments with a locking door, wider beds, and better mattresses. Spend the extra ¥100–150 for soft sleeper.
Can I choose my bunk level on sleeper trains?
Yes, during booking you can select upper (上铺), middle (中铺), or lower (下铺). Lower is most convenient (can sit up, space for luggage underneath) but everyone sits on your bed during the day. Upper is most private.
Are there assigned seats on China's high-speed trains?
Yes — every ticket has an assigned car (车厢) and seat (座位). No first-come-first-served. Your seat number uses letters: A/F = window, C/D = aisle, B = middle (Second Class only).
Can I upgrade my seat after booking?
On 12306, you can change your seat class once (改签) before departure, subject to availability. On Trip.com, cancel and rebook.
Do overnight trains have showers?
No. Most sleeper trains have shared toilets (squat and Western) at the end of each car and a small wash basin. No showers. Bring wet wipes for freshening up.
Related Guides:
- China High-Speed Rail: Complete Guide for Foreigners
- How to Get Around China: Complete Transportation Guide
- 12306 App: Complete Guide for Foreigners
- China Domestic Flights: Complete Guide
- China Metro & Subway: Complete Guide
- DiDi Ride-Hailing: Complete Guide