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Best Mobile Plans Under HK$100 in Hong Kong

The HK$100 line is where Hong Kong's budget plans cluster — MVNOs and operator sub-brands fight here with speed-capped but generous data. Check the fine print on throttled speeds, and remember prepaid cards often work out cheaper per GB than contracts at this price point.

Top pick
Club SIMClub SIM

Club SIM 1GB Data (Prepaid)

HK$38/ mo
Local data
1 GB
Network
4G
Contract
Prepaid
eSIM
Yes
SoSIMSoSIM

SoSIM Prepaid 50GB

HK$48/ mo
Local data
50 GB
Network
5G
Contract
Prepaid
eSIM
Yes
China Unicom HK (CUniq)China Unicom HK (CUniq)

CUniq GO Monthly 1GB

HK$48/ mo
Local data
1 GB
Network
5G
Contract
Monthly
eSIM
Yes
Club SIMClub SIM

Club SIM 2GB Data (Prepaid)

HK$48/ mo
Local data
2 GB
Network
4G
Contract
Prepaid
eSIM
Yes
cslcsl

csl 4G 10GB SIM Only

HK$78/ mo
Local data
10 GB
Network
4G
Contract
24-month
eSIM
Yes
Club SIMClub SIM

Club SIM 3GB Data (Prepaid)

HK$88/ mo
Local data
3 GB
Network
4G
Contract
Prepaid
eSIM
Yes
China Mobile HKChina Mobile HK

CMHK 5G SIM Only 40GB

HK$88/ mo
Local data
40 GB
Network
5G
Contract
12-month
eSIM
Yes
Club SIMClub SIM

Club SIM 5GB Data (Prepaid)

HK$98/ mo
Local data
5 GB
Network
4G
Contract
Prepaid
eSIM
Yes
SmarToneSmarTone

SmarTone 5G Plan $98 30GB

HK$98/ mo
Local data
30 GB
Network
5G
Contract
24-month
eSIM
Yes
China Unicom HK (CUniq)China Unicom HK (CUniq)

CUniq GO Monthly 3GB

HK$98/ mo
Local data
3 GB
Network
5G
Contract
Monthly
eSIM
Yes
BirdieBirdie

Birdie Monthly 16GB

HK$98/ mo
Local data
16 GB
Network
5G
Contract
Monthly
eSIM
Yes

Frequently asked questions

Are sub-HK$100 plans speed-capped?

Many are — sub-brand monthly packs commonly cap around 21–42Mbps, which is still ample for streaming and hotspot use. Plans without caps at this price usually trade data volume instead.

Related guides

Rankings are generated from our latest plan data and update automatically. Prices may change — always confirm with the provider before purchasing.