Phone Plans: How to Choose Data, Minutes & Save Money

Item

Plan A

Plan B

Monthly fee

Over data (GB)

10.0

0.0

Over voice (min)

Overage fee

¥50.0

¥0.0

Total/mo

¥89.0

¥59.0

Total/yr

¥1068

¥708

Key Takeaways

Audit first: carrier app shows 3-6 months of real usage — buy for your peak, not your fear

Rule of thumb: plan price should track your data tier: 10GB → ¥30-50, 30GB → ¥60-90, 100GB+ → ¥100-150

Minutes are cheap: voice is nearly free now; data and "membership bundles" drive plan prices

Loyalty tax: existing customers pay more than new ones — call and threaten to port out annually

Core answer: Choosing a phone plan = matching three numbers: your real monthly data usage, call minutes, and acceptable contract length. The sweet spot for most users in 2025 China: ¥29–59/month for 30–100 GB via online-only plans (互联网套餐) — often half the price of carrier-hall plans for identical networks. Check your last 6 months' actual usage in the carrier app before buying anything.

The plan landscape

Type	Typical price	Data	Best for
Carrier-hall standard	¥99–199	20–60 GB	convenience, bundled services
Online-only (互联网卡)	¥29–59	30–100+ GB	data-heavy users
Family/shared (副卡)	+¥10/card	shares main pool	families
Broadband bundle	¥99–169	40–100 GB + home fiber	homeowners
Elderly/voice-only	¥8–19	2–5 GB	light users

The math that decides

Step 1 — Measure. Carrier app → last 6 months: average data, peak data, call minutes. Buy for the 80th percentile month, not the average, not the max.

Step 2 — Price per GB. ¥59/100 GB = ¥0.59/GB vs ¥99/40 GB = ¥2.48/GB — a 4× spread for the same towers.

Step 3 — Check the fine print: contract lock-in (12/24 months with early-exit penalties), "speed after cap" (1 Mbps vs 3 Mbps matters),定向流量 (app-specific data that doesn't cover ads/third-party links inside those apps), and 靓号 fees.

Worked examples

Example 1 — The over-buyer. Paying ¥129 for 60 GB but using 18 GB/month: switching to a ¥39/40 GB online plan saves ¥1,080/year. Usage data made this a 5-minute decision.

Example 2 — The family consolidation. Three separate ¥59 plans (¥177) vs one ¥139 plan + two ¥10 副卡 (¥159) sharing 80 GB — saves ¥216/year plus unified billing, but watch the shared-pool exhaustion risk with a teenager aboard.

Example 3 — Broadband bundle check. ¥169 bundle (1,000M fiber + 60 GB + 3 cards) vs separate fiber ¥100 + two ¥39 plans: the bundle wins if you need the fiber tier anyway; it loses if you'd otherwise buy 300M fiber at ¥60.

Common mistakes and myths

定向流量 optimism — "40 GB of Tencent-video data" excludes ads, downloads, and third-party embeds; real savings ≈ 70% of face value.
Ignoring the lock-in — cheap plans with 24-month contracts charge the remaining months' discount back on early exit; job changes and moves happen.
Number portability fear — 携号转网 works since 2019: keep your number, switch carriers; unresolved contract items are the only legitimate block.
"5G needs a 5G plan" — any 4G plan on a 5G phone gets 5G access (often speed-capped at 300 Mbps); premium plans mainly raise the cap.
Dual-SIM waste — a ¥8 voice-only main SIM (keep your number) + ¥29 data-only second SIM beats most single ¥99 plans; the classic hacker combo.

Frequently Asked Questions

How do I know which plan fits me?

Open your carrier app and pull the last 3-6 months: peak monthly data, average minutes, SMS count. Choose a plan covering your PEAK month + 20% headroom. Someone peaking at 28 GB does not need a 100 GB plan. This single audit typically identifies ¥30-80/month of overpayment for 70% of users.

What plan types exist and which is cheapest?

(1) Standard carrier plans: ¥59-199, convenient but priciest per GB; (2) internet/MVNO co-branded cards: ¥19-39 for 30-100 GB — best value, check the fair-use fine print (speed caps after threshold); (3) family plans: shared pool, ¥150-250 for 3-5 lines; (4) data-only secondary cards paired with a minimal voice main card — the classic ¥8 voice + ¥29 data combo beats most single plans.

Are "unlimited" plans really unlimited?

No — read the fair-use clause: most throttle to 1-3 Mbps after a threshold (20-100 GB depending on tier), and some cap total at 200 GB. After throttling, HD video buffers. If you consistently use under the threshold, you are paying unlimited prices for metered usage. Match the throttle point to your real peak usage.

How do family plans and secondary SIMs save money?

Family plans pool data across 3-5 members for less than separate plans — good when usage is uneven (kids/parents use little). Alternative architecture: keep your old number on the ¥8 minimum plan (calls/texts) + a pure-data SIM at ¥29/100GB in slot 2 = ¥37/month total, often beating ¥99 single plans. Number portability means the main number never changes.

Can I negotiate with my carrier?

Yes — the retention department has offers the website hides. Script: call, say you are comparing a competitor's price and considering porting out (携号转网), ask what retention plans exist. Typical results: 20-40% discount for 12 months, bonus data, or a silent migration to the current promo plan. Repeat annually — promos expire and default back.

What plan mistakes cost the most?

(1) Paying for unlimited while using 20 GB (¥600+/yr wasted); (2) auto-renewed promo plans quietly reverting to higher base prices; (3) contract phone bundles — "free phone" plans cost more over 24 months than buying the phone outright; (4) unused add-on packs stacking monthly; (5) ignoring the annual audit as usage habits change. Set a yearly calendar reminder to re-audit.